Manuel d'utilisation / d'entretien du produit 271172 du fabricant Briggs & Stratton
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Briggs & Stratton SINGLE CYLINDER OHV AIR-COOLED ENGINES 8/09 273521 Twin Cylinder OHV Air-Cooled Engines 271172 Twin Cylinder L-Head Air-Cooled Engines 270962 Single Cylinder L-Head Air-Cooled En.
FORWARD This manual was written t o assist engine tech nicians and service perso nnel with the repair and maintenance procedur es for Briggs & Stratton engine s.
6 This Engine Repair Manual includes the following Engine Models: • MODEL 1 1 0 0 0 0 HORIZONT AL SERIES • MODEL 1 20 0 0 0 HORIZONT AL SERIES • MODEL 1 50 0 0 0 HORIZONT AL SERIES • M O D E L.
7 1 2 3 4 5 6 8 9 10 11 12 SECTION 1 - Safety, Main tenance and Adjustments SECTION 2 - Troubleshooting SECTION 3 - Exhaust Systems SECTION 5 - Governor Systems SECTION 6 - Cylinde r Heads and Valves .
THISPROPER SERVICE AND REPAIR IS IMPORTANT TO THE SAFE, ECONOMICAL AND RELIABLE.
3 1 1 SECTION 1 - SAFETY, MAINTENANCE, AND ADJUSTMENTS ENGINE SAFETY- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 BRIGGS.
4 1 1 ENGINE SAFETY This repair manual contains safety information that is designed to: • Make you a ware of hazar ds asso ciated with engines . • Inform you of the risk of injury associated with those hazar ds. • T ell you how to a void or reduce the r isk of injur y .
5 1 1 W ARNING Briggs & Str att on does not approv e or autho- riz e the use of these eng ines on 3-wheel All T errain V ehicles (A TV’ s), motor bikes , fun/rec- reational go-karts, aircr a f t products, or vehi- cles intended f or use in competitive e vents.
6 1 1 W ARNING Starting engi ne creates sparking. Sparking ca n ignite near by flamma ble gases. Explos ion and f ire co uld r esult. • If there is a natural or LP gas leak in t he area, do not start engine. • Do not use pr essuriz ed star ting fluids beca use vapor s are flamma ble .
7 1 1 B R I G G S & S T R A T T O N NUMERICAL IDENTIFICATION SYSTEM YOUR KEY TO THE WORLD’S FINEST ENGINES This chart explains the unique Briggs & Stratton num erical model desig nation sys tem. It is possible to determ ine most of the important mechanical fea tures of the engine by mere ly knowing the model number.
8 1 1 ENGINE MAINTENANCE Fuel and Oil Recommendations Fuel must meet these requirements: • Clean, fresh, unleaded gasoline. • A minimum of 87 octane / 87 AKI (90 RON). • Gasoline with up t o 1 0% ethanol (gasahol) or up to 1 5% MTBE (methyl tertiar y butyl ether) is acceptable.
9 1 1 Maintenance Chart * In dusty conditions or when airborne debris is present, clean more often. Flywheel Brake Model Series 97700, 99700, 110000, 120000 Vertical Shaft The flywheel brake is part of the safety control system required for some applications.
10 1 1 Figure 3 6. Using a torque wrench a nd socket to fit the flywheel nut, turn flyw heel clockwise with brake engaged. While turning at a steady rate, torque reading should be 26 lb .-in. (3 Nm) or higher. 7. If reading is low, check thickness of brake pad.
1 1 1 1 Combustion Chamber Remove combustion chamber deposits every 500 hours or whenever the cylinder head is removed. With the piston at Top Dead Center (TDC), scrape deposits from t op of piston and upper bore with a plastic scraper.
12 1 1 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12.
1 3 1 1 Figure 13 Figure 14 Snow Hood NOTE: Snow engines do not have an air cleaner assembly. Instead, a 1-piece or 2-piece snow hood is installed to protect the carburetor area, retain heat to resist carburetor icing, and provide a mounting surface for engine controls.
14 1 1 Oil and Oil Filter Change oil after the first 5 hours of operation. After that, change oil after every 50 hours of operation. Change oil more often if eng ine is operated in dirty or dusty conditions, under heavy loads, or in high ambient temperatures.
1 5 1 1 Cooling System Dirt or debris can restrict air flow and cause the engine to overheat, resulting in poor performance and reduced engine life. Continued operation with a clogged cooling syste m can cause severe overheating and possible engine damage.
16 1 1 ENGINE ADJUSTMENTS Remote Control Wire Travel The remote control wire should measure 2.125” (54 mm) when extended outside the casing (Figure 21).
1 7 1 1 Vertical Models 110000, 120000 with Primer Carburetors 1. Loosen casing clamp screw ( A, Figure 24, Figure 25). 2. Move throttle lever to fast position. 3. Move casing in direction of arrow until slack is removed. 4. Tighten casing clamp screw.
18 1 1 Governor Adjustments A complete governor system adjustment includes a static adjustment, engine warm-up, idle and/or governed idle adjustmen t, and top no- load adjustment. Be sure to comple te all steps. Static Adjustment 1. Loosen screw holding governor lever to governor crank ( A , Figure 28) or ( C , Figure 29).
1 9 1 1 Top No Load Adjustmen t Vertical Models 110000, 120000, 150000 with Primer Carburetors 1. Start engine and run until it reaches operating temperature. 2. Place throttle in FAST position. 3. Using Tachometer #19200 or #1 9389, and Tang Bender #19229 or #19352, bend Top No Load spring tang to obtain correct Top No Load RPM (Figure 32).
20 1 1 Idle and Top No Load Ad justment Horizontal and Vertical Models 200000, 210000 1. Start engine and run until it reaches operating temperature. 2. Place throttle in SLOW position. 3. Hold throttle lever against idle speed screw, and, using Tachometer #19200 or #19389, adjust screw to obtain 1300 RPM.
2 1 1 1 2. Move equipment speed control to idle position. 3. Turn idle screw to obtain 1750 RPM minimum. 4. Then turn idle mi xture screw clockwise slowly until engine begins to slow. 5. Then turn screw opposite direction until engine just begins to slow.
22 1 1 Vertical Models 110000, 120000 Early Production 1. Using a feeler gauge ( A , Figure 42) adjust the locking hex nut ( B ) to obtain the correct clearance as listed in Section 12 - Engine Specifications. 2. Repeat for other valve. Figure 42 - OR - 1.
2 3 2 2 SECTION 2 - TROUBLESHOOTING SYSTEMS CHECK - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 25 CHECK IGNITION - - - - - .
24 2 2 OIL GARD SYSTEMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 49 ENGINE WILL NOT START - - - - - - - - - -.
2 5 2 2 SYSTEMS CHECK Most complaints concerning engine operation can be classified as one or a combination of th e following: • Will not star t • Hard star ting • Lack of power • Runs rough .
26 2 2 2) Check Carburetion Before making a carburetion check, be sure the fuel tank has an ample supply of fre sh, clean gasoline. Be sure the shutoff valve, if equipped , is open and fuel flows freely through the fuel line. If fuel fails to flow or is slow, check for plugged fuel cap vent, fuel line restriction or plugged fu el filter.
2 7 2 2 4. Turn key switch ON. Meter should display battery voltage. If meter does not display battery voltage, the problem is with the solenoid wiring, equipment wire harness, or the keys witch. Repair or replace as required. 3) Check Compression Use Leakdown Tester #19545 to check the sealing capabilities of the compression components.
28 2 2 ELECTRICAL SYSTEMS Equipment Used for Testing Digital Multimeter A digital multimeter is recommended for all electrical testing of Briggs & Stratton engines.
2 9 2 2 Alternator System Diagnosis Complaint Possible Causes Battery Not Chargi ng • Engin e RPM too low . • Inline fuse “b lown ” (if equipped) • Def ectiv e or damaged batt er y (shor ten.
30 2 2 Alternator Identificat ion The alternator systems installed on Briggs & Stratton OHV Engines can eas ily be identified b y the color of the stator output wires and the connector. *Alternator output is determined by the size of the flywheel alternator magnets.
3 1 2 2 1. 0.5 Amp DC Only (Figure 8) • Unregulated • Output at 2800 RPM • .5 Amps DC for char ging bat ter y • One blac k lead ( A ) from st ator • White connector ( B ) output lead Figure 8 2.
32 2 2 Figure 12 6. 5/9 Amp DC (Figure 13) • 5 or 9 Amp DC based on size of flywheel magnet • 5 - 9 Amps DC regulated f or charging bat ter y • One blac k lead from stator ( A ) • Green connect or ( B ) • Y ellow lead ( C ) to r egulator -rectif ier ( F ) • One lead ( D ) from regulat or -rectifi er with red connector ( E ) Figure 13 7.
3 3 2 2 Flywheel Identification OHV single cylinder flyw heels have a single ring of magnets which provide the magnetic field for the various alternator systems, except Model Series 97700, 99700, 121600, 126000 which use the magneto magnet. There are two sizes of flywheel magnets.
34 2 2 5. Attach BLACK test lead clip to positive ( + ) battery terminal. NOTE: Negative ( - ) battery terminal must be grounded. Figure 17 6. With engine running at 3600 RPM, output should be between 2 to 4 Amps DC. • Output will v ar y with bat ter y voltage .
3 5 2 2 Test Alternator Output 1. Insert RED test lead ( A , Figure 19) into the V Ω receptacle in the meter. 2. Insert BLACK test lead ( B ) into COM receptacle. 3. Rotate selector to AC Volts position. 4. Attach RED test lead clip to AC output terminal ( C ).
36 2 2 Figure 21 6. With the engine running at 3600 RPM, output should be between 2 - 4 Amps DC. NOTE: The output will vary with th e battery voltage. At maximum battery voltage the output will be approximately 2 Amps. 7. If NO or LOW output is found, test diode.
3 7 2 2 resistor is bypassed allowing full output to the battery and clutch. The battery is not used for the lights, so lights are available even if the ba ttery is disconnected or removed. Current for the lights is available when the engine is running.
38 2 2 2. Insert BLACK test lead ( B ) into the COM receptacle in the meter. 3. Attach RED test lead clip to ( D ) of the WHITE wire ( C ). (It may be necessary to pierce wire with a pin as shown.) 4. Insert BLACK test lead ( B ) into harness connector.
3 9 2 2 1. Connect stator wire harness to regulator- rectifier. 2. Insert RED test lead into 10 Amp receptacle in meter. 3. Insert BLACK test lead into COM receptacle in meter. 4. Rotate selector to DC Amps position. 5. Attach RED test lead clip ( A , Figure 27) to RED DC output terminal on regulator- rectifier.
40 2 2 NOTICE: Connect test leads BEFORE starting the engine. Be sure connections are secure. If a test lead vibrates loose while engine is running, the regulator-rectifier may be damaged. Use the DC Shunt #19468 ( D , Figure 29) to avoid blowing the fuse in the test meter when testing the DC output of the 16 Amp system.
4 1 2 2 20 Amp DC Regulated Alternator The 20 Amp regulated alternator system provides AC current through two output leads to the regulator-rectifier. The regulator-rectifier converts the AC current to DC, an d regulates current to the battery. The charging rate will vary with engine RPM and temperature.
42 2 2 Figure 32 5. Rotate selector to DC volts position. 6. With the engine running at 3600 rpm, the output should be 3-20 amps. 7. If no or low output is found, be sure that the regulator-rectifier is grounded properly and all equipment connections are clean and secure.
4 3 2 2 ELECTRIC STARTERS Before assuming an electric starter requires service, check the engine for freedom of rotation by removing the spark plug and turning the crankshaft over by hand. Any belt, clutch, or other parasitic load will affect the starter cranking performance, so ensure their effects are minimized.
44 2 2 Figure 34 If the pinion gear sticks, clean the helix and gear with a mild solvent and compressed air. If the pinion continues to stick, replace the entire starter drive assembly. NOTE: Do not oil the pinion gear or helix. The starter motor clutch is designed to prevent damage from shock loads such as engine backfire.
4 5 2 2 Test Interlock Switch Wiring 1. Disconnect interlock switch wires from spade terminals on switch and at starter motor connection. 2. Set meter to Ohms position. 3. Connect one meter test lead to the end of one wire connector and other test lead to the opposite connector in the same wire (Figure 37).
46 2 2 Figure 38 5. Activate starter motor and note readings of meter and tachometer.Take reading after meter stabilizes (approximately 2-3 seconds). 6.
4 7 2 2 BATTERIES A 12 Volt, lead acid, wet cell battery is required to operate starter motors on Briggs & Stratton OHV single cylinder engi nes. This type is available as a wet charge or dry charge battery. The wet charged maintenance-free ba ttery is filled with electrolyte and sealed at the time production.
48 2 2 Figure 40 Testing Battery Set the digital multimeter to DC volts position. Test the battery while installed in the equipment. 1. Disconnect wire from spark plug and ground ignition using Ignition Tester #19368. 2. Attach RED meter test clip to positive ( + ) battery terminal.
4 9 2 2 EQUIPMENT AFFECTING ENGINE OPERATION Frequently, what appears to be a problem with engine operation, such as hard starting or vibration, may be the fault of the equipment rather than the engine itself. Below are some common symptoms and potential equipment- related sources.
50 2 2 On/Off Switch Light Does Not Flash 1. Check engine oil level. If low, add oil to bring to FULL mark on dipstick. 2. Try to start engine while shading ON/OFF switch light from bright light such as sunlight. If light does not flash, replace switch.
5 1 3 3 SECTION 3 - EXHAUST SYSTEMS SPARK ARRESTORS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 2 MUFFLER SERVICE - - - - - - .
52 3 3 Some engines are equipped with exha ust systems (mufflers, brackets, and hardware) supplied by the OEM. Contact the OEM for muffler service information.
5 3 3 3 Figure 3 3. Remove screws ( A , Figure 4) holding upper muffler bracket to lower muffler bracket. Figure 4 4. Unscrew muffler from exhaust elbow and pipe assembly.
54 3 3 Figure 7 Horizontal Models 200000, 210000 Shown is a typical muffler application (Figure 8). Figure 8 Remove Guard and Muffler 1. Remove screws ( A , Figure 9) holding muffler guard to muffler. 2. Remove screw holding muffler guard to control bracket.
5 5 3 3 Figure 11 Inspect Exhaust System All exhaust system components must be inspected whenever the exhaust system is disassembled. Check muffler mounting bracket and/or muffler adapters fo r cracked welds or breakage. Check muffler fo r split seams, loose internal parts, or crac ked welds.
56 3 3 Figure 14 3. Remove muffler support screws ( A , Figure 15). Figure 15 4. Remove the exhaust pipe screws, muffler assembly, and gaskets. Discard gaskets. Inspect Exhaust System All exhaust system components must be inspected whenever the exhaust system is disassembled.
5 7 3 3 2. Remove screws holding muffler guard ( A , Figure 18). Remove guard and set aside. Figure 18 3. Remove dipstick and oil fill tube ( A , Figure 19). 4. Remove blower housing and rewind starter ( B ). Figure 19 5. Remove screws ( A , Figure 20) holding exhaust pipe flange to cylinder head.
58 3 3 7. Install blower housing and rewind starter. 8. Install oil fill tube and dipstick. 9. Lightly coat muffler guard mounting screws with Valve Guide Lubricant #93963. 10. Place muffler guard over muffler and start screws ( A , B , C , Figure 22).
5 9 3 3 Install Muffler 1. Lightly coat muffler adapter screws with Valve Guide Lubricant #93963. 2. Install new gasket and adapter. Install screws ( A , Figure 25) and torqu e to values listed in Section 12 - Engine Specifications. Figure 25 3. Install muffler supports and start but do not tighten screws ( A , B , C , Figure 26).
60 3 3 Vertical Models 280000, 310000, 330000 with Bolt-On Muffler Shown is a typical muffler application (Figure 27). Figure 27 Remove Muffler 1. Remove muffler support screw ( C , Figure 28). 2. Bend back tabs ( A ) on screw lock and remove mounting screws ( B ), muffler, and gasket.
6 1 4 4 SECTION 4 - FUEL SYSTEMS AND CARBURETION FUEL SYSTEMS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 62 FUEL PUMP -.
62 4 4 FUEL SYSTEMS NOTE: Replace air cleaner gaskets and mounting gaskets whenever carburetor is removed for servic e. NOTE: Do not insert a screw in the end of the fuel hose to stop fuel flow. Screw threads will loosen rubber particles which will get into the carburetor.
6 3 4 4 Fuel Pump The fuel pump, mounted near the blo wer housing and the air cleaner cover, allows remote fuel tank installations on some engines. The pump is operated by vacuum pulses from the engine. NOTE: The fuel pump itself is not serviceable. If the pump does not operate after inspection an d proper installation, replace the pump.
64 4 4 Fuel Filter Some engines are equipped with a fuel filter (Figure 3) mounted in-line between the fuel ta nk and the carburetor. Replace the filter annually or whenever fuel system service is performed. Figure 3 1. Drain the fuel tank or close the fuel shut- off valve, if equipped.
6 5 4 4 Installation 1. Install tank support to tank. Slip fuel hose under governor link and spark plug wire through hole in support as tank is installed. Torque screws to values listed in Section 12 - Engine Specifications. 2. Assemble shut-off valve and fuel filter, if equipped, to fuel hose.
66 4 4 5. If necessary, remove two nuts from bracket and slide bracket off cylinder head studs. Inspection 1. Clean gummy or dirty fuel tanks with Briggs & Stratton Carburetor Cleaner #100041 or #100042, or equivalent. 2. Inspect fuel tank for: • Corrosion • Leaks • Brok en mo unting brack ets 3.
6 7 4 4 CARBURETION Carburetor Identification • Figur e 6 - LMS, Models 97700, 99700, 1 1 00 00, 120000, 1 50000 V er tical and Horiz ontal Shaft • Figur e 7 - ReadyStar t®, Models 1 10000, 1 200.
68 4 4 Figure 11 NOTE: Consult the Illustrated Parts List to obtain the appropriate carburet or overhaul kit before reassembling the carburetor. NOTE: Many early carburetors had adjustable needle valves to compens ate for high altitude conditions. Later carbur etors use replaceable main jets to compensate for various high altitude ranges.
6 9 4 4 Figure 13 Figure 14 4. Remove two carburetor mounting screws. 5. Pull carburetor away from the control bracket assembly and rotate it to disengage the governor link from the grommet on top of the throttle shaft lever. NOTE: On early production models, the mounting screws also retained the control bracket.
70 4 4 Inspect and Clean Carburetor Co mponents 1. Inspect openings in the carburetor body for evidence of wear or damage. If found, replace the entire carburetor assembly. 2. Inspect the choke shaft, choke valve, throttle shaft, and throttle valve for evidence of wear or damage.
7 1 4 4 Figure 20 6. Install new inlet needle ( E , Figure 21) on float ( D ), then position float in carburetor body. Secure with new hinge pin ( C ) an d center the pin between the float bosses. NOTE: On Model 97700, install the flat disc ( B ) and main jet ( A ).
72 4 4 Figure 24 6. Connect fuel hose to carburetor and secure with clamp. 7. Using new gasket, install air cleaner assembly to carburetor per Section 1. Ensure breather hose is properly installed on the breather tube. 8. Adjust carburetor, if applicable, per Section 1.
7 3 4 4 the governor link from the grom met on top of the throttle shaft lever ( B ). Dis card gasket. Disassemble Carburetor 1. Remove the fixed main jet (bowl nut) and fiber washer, then remove the fuel bowl and the bowl gasket from the carburetor body.
74 4 4 edge of the plug with a non-h ardening sealant. Figure 29 2. Install new foam seal ( B , Figure 30) on choke shaft ( E ), then slide shaft into carburetor body ( C ). Rot ate shaft clockwise ( A ), and insert choke va lve into slot until centered, with dimples ( D ) positioned as shown.
7 5 4 4 7. Place new bowl gasket on carburetor body and install fuel bowl. Place new fiber washer on fixed main jet (bowl nut) and install. Torque to values listed in Section 12 - Engine Specifications. Install Carburetor NOTE: Always replace air cleaner gaskets and carburetor mounting gaskets any time the carburetor has been removed for service.
76 4 4 5. Remove gasket ( A , Figure 36), spacer, and o-ring between control bracket and carburetor ( B ). Figure 36 Disassemble Carburetor 1. Remove the fixed main jet (bowl nut) ( A , Figure 37) and fiber washer ( B ), then remove the fuel bowl ( C ) and the bowl gasket ( D ) from the carburetor body.
7 7 4 4 3. Place new gasket ( A , Figure 39), spacer, and new o-ring between control bracket ( B ) and carburetor ( C ). 4. Position carburetor on control bracket and install screws. Torque to value listed in Section 12 - Engine Specifications. NOTE: Use new screws or apply Loctite® to original scr ews to pr ev ent loosening from vibration.
78 4 4 Remove Carburetor 1. Disconnect wire(s) from the carburetor solenoid. Two styles of solenoids have been used (Figure 42). Figure 42 2. Remove air cleaner assembly per Section 1. Discard the gasket. 3. Move clamp and disconnect hose from carburetor.
7 9 4 4 open position, then pull choke va lve out of choke shaft. Remove choke shaft, return spring (when used ), and foam seal. Discard seal. - OR - If carburetor is equipped with a metal choke shaft, rotate choke shaft to closed position. Remove two choke valve screws and choke valve.
80 4 4 Figure 48 - OR - 3. If carburetor is equipped with a plastic choke shaft, • Install new f oam seal and retur n spring on choke shaf t ( C , F igure 49) with straight end of spring ag ainst choke shaf t lev er ( B ). • Inser t choke shaf t assembly into carburet or body and engage large end of return spring on anchor pin or boss ( A ).
8 1 4 4 8. Install emulsion tube using Carburetor Screwdriver #19280 until tube seats ( A , Figure 52). Figure 52 9. Place new bowl gasket on carburetor body and install fuel bowl.
82 4 4 Nikki Carburetor Vertical Models 280000, 310000, 330000 Remove Carburetor 1. Disconnect the wire from the carburetor solenoid ( E , Figure 55). 2. Remove air cleaner assembly per Section 1. Discard gasket. 3. Move clamp and disconnect fuel hose from carburetor.
8 3 4 4 Figure 58 6. If equipped, remove the idle mixture screw with spring ( A , Figure 59) and the idle speed screw with spring ( B ). Figure 59 7. Rotate the throttle shaft to the closed position (Figure 60). Remove two screws ( A ) and the throttle plate.
84 4 4 • Choke shaf t and choke val ve • Throt tle shaft and thr ottle v alve • All passages, openings, and the inside and outside of the carbur etor body NOTE: Do not soak non-metallic components, such as floats, o-rings, s eals, or diaphragms, in carb/choke cleaner or they will be damaged.
8 5 4 4 NOTE: The holes in the throttle plate a re offset. If the throttle plate is installed incorrectly, if will not close. 9. If equipped, install idle mixture screw with spring and the idle speed scre w with spring. Turn each screw until the head of the screw touches the spring.
86 4 4 Figure 71 4. Hook choke link ( C ) into hole in choke lever. 5. Position carburetor on manifold and install screws or nuts by hand. 6. Actuate choke and throttle linkages to ensure proper movement, then tighten screws per values li sted in Section 12 - Engine Specifications.
8 7 5 5 SECTION 5 - GOVERNOR SYSTEMS LINKAGE AND SPRING ORIENTATION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 88 GOVERNED RPM LIMITS - - - - - - - - - -.
88 5 5 GOVERNOR SYSTEMS Linkage and Spring Orientation NOTE: Be sure to note hole position of linkage before removing. • Figur e 1 - Horizontal Shaf t Models 1 1 00 00, 1 20000, 1 50000, 200000, 21 0000.
8 9 5 5 Figure 6 Figure 7 Figure 8 Governed RPM Limits To comply with specified top governed speed limits, Briggs & Stratton supplies engines with an adjustable top speed limit, which the e quipment manufacturers set to their own specifications.
90 5 5 Figure 10 Inspect Governor 1. Check governor gear assembly for worn weight pins, worn or damaged governor cup, and chipped or damaged teeth. 2. If wear or damage is found, remove the governor gear by carefully prying it off the spindle with two flat-bladed screw drivers ( A , Figure 11).
9 1 5 5 Vertical Models 97700, 99700, 110000, 120000, 210000, 280000, 310000, 330000 The mechanical governor is part of the oil slinger assembly ( A , Figure 13) attached to the camshaft. The governor crank is mounted in the cylinder assembly. Figure 13 Disassemble 1.
92 5 5 6. Place seal protector in oil seal and slide sump over crankshaft until it seats. NOTE: It may be necessary to rotate cranksha ft and cam gear to get oil pump (if equipped) to engage oil pump drive slot in cam gear. 7. Install sump screws in order shown in Figure 16 and Figure 17.
9 3 6 6 SECTION 6 - CYLINDER HEAD AND VALVES SERVICE CYLINDER HEAD - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -9 4 HORIZONTAL AND VERTICA.
94 6 6 CYLINDER HEADS AND VALVES Before the cylinder head can be removed, other external parts must be removed, such as the air cleaner, fuel tank, oil fill tube, blower housing, muffler, carburetor, cont rol bracket assembly, and intake manifold. Remove Cylinder Head Horizontal and Vert ical Models 97700, 99700, 110000, 120000, 150000 1.
9 5 6 6 Figure 6 3. Remove push rods one at a time, marking the location and orientation of each for proper installation later. 4. Using a plastic scraping tool, carefully clean all traces of head gasket from the head and cylinder mating surfaces. Disassemble Cylinder Head 1.
96 6 6 2. If head passes visual inspection, use Plug Gauge #19122 to check valve guides for wear. If gauge enters the guide 1/4” (6.4 mm) or more, replace the guide (models 97700, 99700) or replace the entire head (models 110000, 120000, 150000).
9 7 6 6 Figure 13 4. Support valve si de of cylinder head on clean shop rags. Plac e valve springs and valve spring retainers over valve stems. Using thumbs, press against each retainer until it securely locks into groove in valve stem (Figure 14). Figure 14 Install Cylinder Head 1.
98 6 6 Figure 18 NOTE: Do not torque each screw in one step as it may result in a warped cylinder head. Step- torque all screws to approximately 1/3 of final torque value, then to 2/3 final torque value, then finish at final torque value. 3. Install push r od guide and rocker arm studs (models 97700, 99700).
9 9 6 6 Remove Cylinder Head Models 200000, 210000, 280000, 310000, 330000 1. Remove four screws from rocker cover, then remove cover and gasket ( A , Figure 20).
100 6 6 mm) or more, replace the entire head. If plug gauge is not available, see Section 12 - Engine Specifications for the valve guide reject dimension. 3. If guides are replaced, or the original guides still meet specif ications, use Finish Reamer #19066 and Reamer Guide #19191 to ensure proper sizing and to clean out the guides.
101 6 6 Figure 26 Figure 27 Figure 28 NOTE: Do not torque each screw in one step as it may result in a warped cylinder head. Step- torque all screws to approximately 1/3 of final torque value, then to 2/3 final torque value, then finish at final torque values.
102 6 6.
103 7 7 SECTION 7 - STARTERS REWIND STARTERS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 104 REMOVE BLOWER HOUSING / STARTER - -.
104 7 7 REWIND STARTERS On some engines, the rewind starters are attached to the blower housing with screws and can be quickly removed. Other starters are riveted or spot welded to the blower housing and must be drilled to remove, following the procedures below.
105 7 7 Figure 4 5. Carefully drill through all rivet heads and remove rewind starter. Do not allow drill bit to cut into the holes in the starter housing. NOTE: Do not attempt to drill out the rivets while the blower is still on the engine. The rivets are made of steel and the shavings will collect on the flywheel magnets.
106 7 7 Figure 8 6. Carefully drill through all rivet heads and remove rewind starter. Do not allow drill bit to cut into the holes in the starter housing. NOTE: Do not attempt to drill out the rivets while the blower is still on the engine. The rivets are made of steel and the shavings will collect on the flywheel magnets.
107 7 7 Inspect Rewind Starter Parts NOTE: Do not remove the spring from the pulley. Both parts are serviced only as an assembly. 1. Inspect the pulley for wear, cracks, rough edges, or burrs in the rope groove and look for wear in the center hole. If wear or damage is found, replace the pulley and spring asse mbly.
108 7 7 Vertical Models 97700, 99700 1. Install the screws to the blower housing ( D , Figure 11), torquing screws to values listed in Section 12 - Engine Specifications.
109 7 7 5. Fill fuel tank or open fuel shut-off valve. Connect fuel hose to carburetor and connect spark plug wire. Figure 16 Vertical Model 280000 1. For installation, screws and nuts a re available separately from the Illustrated Parts List and are included with complete replacement starters.
110 7 7 2. Wipe off any excess oil from the top of the ratchet, then place the ratchet on the housing. 3. Install the retainer cover and seal over the ratchet and press into housing until fully closed. Install retaining screws (if used). 4. Place one drop of clean engine oil on top of crankshaft pilot, then install clutch on crankshaft.
111 7 7 Remove Starter Drive and Clutch 1. Remove E-ring ( A , Figure 20). 2. Remove three screws ( B ) holding gear cover. 3. Lift clutch assemb ly and gears from shaft. Figure 21 Install Starter Drive and Clutch 1. Slip pinion ( A , Figure 21) on motor shaft.
112 7 7 Figure 24 2. Remove retainer ( A , Figure 24), return spring ( B ), fla t washer ( C ), wave washer ( D ), pinion gear ( E ), and starter clutch ( F ). Figure 25 Assemble Starter Motor Drive - C-Ring Retainer 1. Place clutch on starter shaft ( A , Figure 25).
113 7 7 Figure 28 4. Place new C-ring over chamfered end of shaft. 5. Align one of the slots ( G , Figure 28) of C- Ring Installer #19435 with open end of C- ring ( H ). 6. Press on tool until C-ring snaps into groove in shaft. 7. Manually actuate pinion gear on helix to ensure proper movement.
114 7 7 Assemble Starter Drive - Roll Pin Retainer 1. Place clutch ( E , Figure 31) on starter shaft and rotate clutch until it drops into place. Figure 32 2. Install pinion gear ( D ) with beveled edge of teeth up. 3. Place washer ( C ) and retainer ( B ) on starter shaft.
115 8 8 SECTION 8 - LUBRICATION SYSTEMS EXTENDED OIL FILL AND DIPSTICK - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 116 BREATHERS- - - - - - - - - - - - .
116 8 8 EXTENDED OIL FILL AND DIPSTICK Horizontal Models 110000, 120000, 150000, 200000, 210000 These models use a plastic extended oil fill tube and a quarter-turn dipstick.
117 8 8 Figure 2 Check Breather 1. Check for movement of the disc valve in the breather assembly. If disc is stuck or binding, replace the brea ther assembly. 2. Visually inspect the assembly for warping, wear, or damage. If these conditions are found, replace the breather assembly.
118 8 8 NOTE: Do not apply fo rce to the wire gauge! The disc valve is retained by an inte rnal bracket which will be distorted if pressure is applied to disc. Figure 4 Install Breather 1. Place new gasket and breather asse mbly on cylinder. Torque to screws to values listed in Section 12 - Engine Specifications.
119 8 8 Install Breather 1. Install reed with the metal tab facing outside of the engine, as shown in Figure 8. Torque screw to va lues listed in Section 12 - Engine Specifications. 2. Place new gasket or sealant on cylinder. Install breather cover and torque screws to values listed in Section 12 - Engine Specifications.
120 8 8 Oil Slinger with Pressure Filtrat ion Vertical Models 120000, 210000, 280000, 310000, 330000 Some of these models are equipped with a gerotor pump that draws oil from the sump, pumps it through the oil filter, and back to the sump (Figure 11).
121 8 8 Figure 15 2. Carefully remove inner ( C ) and outer rotors ( D ). NOTICE: Depending on Model Series, inner rotor may include the drive shaft or the drive shaft may be a separate part. Remove shaft, when it is a separate part. Remove Pump Screen Three types of oil pum p screens have been used on models 280000, 310000, 330000.
122 8 8 Inspect Oil Pump Parts 1. Inspect surfaces of outer and inner rotors, pump housing, cover, and shaft for wear and scoring. Replace parts if nece ssary. 2. Inspect pump housing and passages for debris. Clean as required. 3. Inspect screen for clogging or damag e.
123 8 8 Figure 24 Inspect 1. Check adapter for cracks or damage to the sump and filter mounting surfaces. Replace adapter if necessary. 2. Clean all oil passages in adapter and in sump. Install 1. Using new gasket, place adapter on sump and install screws.
124 8 8 Figure 26 Figure 27 There are two types of Oil Gard syst ems in use: • Start Sense • Run Sense Identification Start Sense is designed to prevent the engine from starting if the oil level is too low. It will not start an engine that is already running.
125 9 9 SECTION 9 - CYLINDERS , COVERS AND SUMPS CYLINDER - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 126 INSPECT .
126 9 9 CYLINDER Inspect Cylinder 1. Visually check cyli nder for cracks, stripp ed threads, and bore damage. • If cracks ar e found, replace the cylinder . • Stripped thr eads can sometimes be repair ed using a helicoil, but if multiple holes hav e thread damage, replace the cylinder .
127 9 9 Cleaning Cylinder 1. Wash the cylinder thoroughly in a solvent such as kerosene or other commercial solvent. 2. Wash cylinder again using a stiff brush with soap and hot water. 3. Rinse cylinder thor oughly with hot running water. 4. Repeat washing and rinsing until all traces of honing grit are gone.
128 9 9 replace the affected cylinder, crankcase cover, or sump (Figure 6). NOTE: Standard and reject sizes for the main bearings are shown in Section 12 - Engine Specifications. Figure 6 Replace Bearings Replace DU ™ Bearings 1. Select tools needed from Figure 7 and Figure 8.
129 9 9 Figure 10 5. Place cylinder or cover/sump on cylinder support ( B , Figure 11) with large opening facing bearing. 6. Align oil holes in bearing with oil holes in cylinder or cover/sump, then press in new bearing to correct depth with bushing driver ( A ).
130 9 9 Figure 13 3. Assemble washer ( C , Figure 14) to puller screw ( D ) and insert through large end of removal driver ( B ). Place open end of support ( A ) against ball b earing. 4. Insert screw with washer and driver through ball bearing and thread into support.
131 9 9 4. Insert screw, with washer and driver through the ball bearing and thread into support. Continue tigh tening screw until ball bearing is removed. Figure 16 5. Lubricate outside diameter of new ball bearing. Place ball bearing on support ( A , Figure 17).
132 9 9 Figure 19 NOTE: Always install new oil seals when engine is reassembled or w hen replacing bearings. Always use the correct s eal protector to prevent damaging the oil seal during installation. COVERS AND SUMPS Installation 1. Select correct seal protector for Kit #19356, to protect oil seal when installing cover or sump.
133 9 9 Figure 22 Figure 23 Figure 24.
134 9 9.
135 10 10 SECTION 10 - CRANKSHAFTS, CAMSHAFTS, BALANCING SYSTEMS, AND GEAR REDUCTIONS CRANKSHAFTS AND CAMSHAF TS- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - .
136 10 10 CRANKSHAFTS AND CAMSHAFTS Remove Crankshaft and Camshaft 1. Drain oil from engine and all fuel from fuel tank. Drain oil from gear reduction unit (if equipped) and remove from engine ( A , Figure 1). 2. Remove blower housing/rewind assembly and flywheel/fan assembly.
137 10 10 Figure 4 Figure 5 2. Using a dial caliper, measure the journal diameters and cam lobes. Compare results to values listed in Section 12 - Engine Specifications . If wear exceeds the reject dimensions, replace the camshaft. Install Crankshaft and Camshaft 1.
138 10 10 Install Crankcase Cover or Sump 1. Using a new gasket install crankcase cover or sump using seal protectors. Do not force cover or sump on cylinder. NOTE: It may be nece ssary to rotate crankshaft to get oil pump (if equipped) to engage d rive slot in camshaft.
139 10 10 Check and Adjust Crankshaft End Play When crankcase cover or sump is installed with a standard gasket, end play should match values listed in Section 12 - Engine Specifications. If end play is less than specified, remove cover or sump and install an additional gasket.
140 10 10 GEAR REDUCTION Disassemble Gear Reduction 1. Note orientation of gear reduction assembly on engine. Place an oil collection pan beneath the assembly. 2. Remove oil vent plug ( C , Figure 17) and set aside. 3. Loosen four cap screws ( D ) that secur e the gear case cover assembly.
141 10 10 Figure 20 7. Install pinion gear on crankshaft. 8. Slide drive shaft as sembly into gear case bearing and rotate to engage crankshaft pinion gear. 9. Place new gasket on gear case assembly. 10. Slide cover over drive shaft until seated on new gasket.
142 10 10 AUXILIARY PTO Some models of the vertical shaft 110000 and 120000 engines were equipped with an auxiliary PTO shaft. The auxiliary PTO shaft ( E , Figure 23) extends through the side of the sump, perpendicular to the crankshaft. Rotation ca n be either clockwise or count erclockwise, as vie wed from the end of the shaft.
143 10 10 COUNTERBALANCE SYSTEMS Two styles of counterbalance systems are used on Vertical crankshaft engines. Models 280000 and 310000 (built before July 2001) have the Synchro-Balance® system. Models 280000 and 310000 built July 2001 and later, and all models 210000 and 330000 have the AVS® sy stem.
144 10 10 Assemble 1. Lubricate all beari ng surfaces with clean engine oil. 2. Slide magneto-side counterweight ( A , Figure 28) on flywheel end of crankshaft. 3. Place crankshaft and counterweight in a vise with soft jaws or shop rags to protect magneto journal.
145 10 10 AVS® Balance S ystem Remove 1. Remove blower housing, flywheel, cylinder head, and sump. Discard gaskets. 2. Remove connecting rod and piston assembly. 3. Remove crankshaft and counterweight assembly. Disassemble 1. Remove the crankshaft gear ( F , Figure 30) from the crankshaft ( A ).
146 10 10.
147 9 11 SECTION 11 - PISTONS, RINGS AND CONNECTING RODS REMOVE PISTON AND CONNECTING ROD - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 148 DISASSEMBLE - - - - - - .
148 9 11 PISTONS, RINGS, & CONNECTING RODS Remove Piston and Connecting Rod 1. Carefully remove any carbon or ridge at top of cylinder bore to prevent ring breakage. 2. Remove rod bolts and connecting rod cap ( A , Figure 1). 3. Push piston and rod assembly out through top of cylinder bore.
149 9 11 Engine Specificati ons. If clearance is greater than shown the piston must be replaced. Figure 4 Check Ring End Gap It is recommended that the entire ring set be replaced when servicing the piston and/or cylinder bore. However, the origina l rings can be re-used if they are not damaged and are checked as follows: 1.
150 9 11 NOTE: For Vertical Model 120000 ONLY, install piston with notch or arrow ( A , Figure 8) facing away from “MAG” on the rod. When installed in engine, the notch will face the PTO. Figure 8 3. Install a pin retainer into groove on open side of piston pin bore.
151 12 SECTION 12 - ENGINE SPECIFICATIONS MODEL 110000 HORIZONTAL SERIES- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 152 MODEL 120000 HORIZONTAL SERIES- - .
152 12 MODEL 110000 HO RIZONTAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .028 in. (.05 - .71 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .004 - .006 in. (.10 - .15 mm) Valve Clearance – Exhaust .
153 12 REJECT DIMENSION S STANDARD SIZE REJECT SIZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .5008 in. (12.72 mm) .5040 in. (12.80 mm) Bore Diameter 2.688 in. (68.28 mm) 2.692 in. (68.38 mm) Bore Out-Of-Round N/A .
154 12 MODEL 120000 HO RIZONTAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .028 in. (.05 - .71 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .004 - .006 in. (.10 - .15 mm) Valve Clearance – Exhaust .
155 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .5011 in. (12.72 mm) .5040 in. (12.80 mm) Bore Diameter 2.970 in. (75.44 mm) 2.974 in. (75.54 mm) Bore Out-Of-Round N/A .
156 12 MODEL 150000 HO RIZONTAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .028 in. (.05 - .71 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .004 - .006 in. (.10 - .15 mm) Valve Clearance – Exhaust .
157 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .5011 in. (12.72 mm) .5040 in. (12.80 mm) Bore Diameter 2.970 in. (75.44 mm) 2.974 in. (75.54 mm) Bore Out-Of-Round N/A .
158 12 MODEL 200000 HO RIZONTAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .028 in. (.05 - .71 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .004 - .006 in. (.10 - .15 mm) Valve Clearance – Exhaust .
159 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .5011 in. (15.88 mm) .504 in. (12.80 mm) Bore Diameter 2.688 in. (65.10 mm) 2.691 in. (68.33 mm) Bore Out-Of-Round N/A .
160 12 MODEL 210000 HO RIZONTAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .028 in. (.05 - .71 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .004 - .006 in. (.10 - .15 mm) Valve Clearance – Exhaust .
161 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing 1.1825 in. (30.03 mm) 1.184 in. (30.07 mm) Camshaft Bearing .5011 in. (12.72 mm) .5040 in. (12.80 mm) Bore Diameter 3.300 in. (83.82 mm) 3.304 in. (83.92 mm) Bore Out-Of-Round N/A .
162 12 MODELS 97700 & 99700 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .006 - .012 in. (.15 - .30 mm) Crankshaft End Play .002 - .034 in. (.05 - .86 mm) Spark Plug Gap .030 in. (.76 mm) Alternator Air Gap .010 in. (.25 mm) Valve Clearance – Intake .
163 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .625 in. (15.88 mm) .622 in. (15.80 mm) Bore Diameter 2.563 in. (65.10 mm) 2.567 in. (65.20 mm) Bore Out-Of-Round N/A .
164 12 MODEL 110000 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .034 in. (.05 - .86 mm) Spark Plug Gap .03 0 in. (.76 mm) Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm) Valve Clearance – Exhaust .
165 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .5011 in. (12.72 mm) .504 in. (12.80 mm) Bore Diameter 2.688 in. (68.28 mm) 2.692 in. (68.38 mm) Bore Out-Of-Round N/A .
166 12 MODEL 120000 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .034 in. (.05 - .86 mm) Spark Plug Gap .02 0 in. (.50 mm) Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm) Valve Clearance – Exhaust .
167 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing .876 in. (22.25 mm) .878 in. (22.30 mm) Camshaft Bearing .5011 in. (12.72 mm) .504 in. (12.80 mm) Bore Diameter 2.688 in. (68.28 mm) 2.692 in. (68.38 mm) Bore Out-Of-Round N/A .
168 12 MODEL 210000 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .034 in. (.05 - .86 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm) Valve Clearance – Exhaust .
169 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing 1.3795 in. (35.04 mm) 1.383 in. (35.13 mm) Camshaft Bearing .5011 in. (15.88 mm) .504 in. (12.80 mm) Bore Diameter 3.437 in. (87.30 mm) 3.441 in. (87.40 mm) Bore Out-Of-Round N/A .
170 12 MODEL 280000 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .023 in. (.05 - .58 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm) Valve Clearance – Exhaust .
171 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing 1.3795 in. (35.04 mm) 1.383 in. (35.13 mm) Camshaft Bearing .5011 in. (15.88 mm) .504 in. (12.80 mm) Bore Diameter 3.437 in. (87.30 mm) 3.441 in. (87.40 mm) Bore Out-Of-Round N/A .
172 12 MODEL 310000 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .010 - .014 in. (.25 - .36 mm) Crankshaft End Play .002 - .023 in. (.05 - .58 mm) Spark Plug Gap .030 in. (.76 mm) Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm) Valve Clearance – Exhaust .
173 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing 1.3795 in. (35.04 mm) 1.383 in. (35.13 mm) Camshaft Bearing .5011 in. (15.88 mm) .504 in. (12.80 mm) Bore Diameter 3.563 in. (90.50 mm) 3.567 in. (90.60 mm) Bore Out-Of-Round N/A .
174 12 MODEL 330000 VERTICAL SERIES ENGINE SPECIFICATIONS Armature Air Gap .008 - .012 in. (.20 - .30 mm) Crankshaft End Play .002 - .020 in. (.05 - .51 mm) Spark Plug Gap .03 0 in. (.76 mm) Valve Clearance – Intake .003 - .005 in. (.08 - .13 mm) Valve Clearance – Exhaust .
175 12 REJECT DIMENSION S STANDARD SIZE REJECT S IZE CYLINDER Main Bearing 1.6248 in. (41.27 mm) 1.629 in. (41.38 mm) Camshaft Bearing .5011 in. (15.88 mm) .504 in. (12.80 mm) Bore Diameter 3.701 in. (94.01 mm) 3.705 in. (94.11 mm) Bore Out-Of-Round N/A .
176 12.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Briggs & Stratton 271172 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Briggs & Stratton 271172 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Briggs & Stratton 271172, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Briggs & Stratton 271172 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Briggs & Stratton 271172, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Briggs & Stratton 271172.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Briggs & Stratton 271172. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Briggs & Stratton 271172 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
