272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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WARNING Gasoline and its vapors are extremely flammable and explosive. Fire or explosion can cause severe burns or death. WHEN ADDING FUEL • Turn engine OFF and let engine cool at least 2 minutes before removing gas cap. • Fill fuel tank outdoors or in a well-ventilated area. Keep gasoline and its vapors away from sparks, open flames, pilot lights, heat, and other ignition sources. • Do not overfill fuel tank. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion. • Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if necessary. WHEN STARTING ENGINE • Make sure spark plug, muffler, fuel cap and air cleaner are in place. • Do not crank engine with spark plug removed. • If fuel spills, wait until it evaporates and the vapors dissipate before starting engine. • If engine floods, set choke to OPEN/RUN position, place throttle in FAST position. Crank until engine starts. WHEN OPERATING EQUIPMENT • Do not tip engine or equipment at an angle that causes gasoline to spill. • Do not choke carburetor to stop engine. WHEN TRANSPORTING EQUIPMENT • Transport with fuel tank EMPTY or with fuel shut-off valve OFF. WHEN STORING GASOLINE OR EQUIPMENT WITH FUEL IN TANK • Store away from furnaces, stoves, water heaters or other appliances that have pilot light or other ignition source. These can ignite gasoline vapors. WARNING Kerosene and its vapors are extremely flammable, and should be handled with the same precautions as gasoline. WARNING Unintentional sparking can result in fire or electric shock. Unintentional start-up can result in entanglement, traumatic amputation, or laceration. BEFORE PERFORMING ADJUSTMENTS OR REPAIRS • Disconnect spark plug wire and keep it away from spark plug. • Disconnect battery at negative terminal (only engines with electric start). WHEN TESTING FOR SPARK • Use approved spark plug tester. • DO NOT check for spark with spark plug removed. WARNING All fuel components should be in good condition and properly maintained. • Repairs should only be made with factory approved parts. • Repair work should be done by a qualified technician. • Flexible supply lines should be checked regularly to make sure they are in good condition. Replace damaged or leaking components. 3
WARNING Engines give off carbon monoxide, an odorless, colorless, poison gas. Breathing carbon monoxide can cause nausea, fainting or death. • Start and run engine outdoors. • DO NOT start or run engine in enclosed area, even if doors or windows are open. • Inhalation of high concentrations of vapor, even for short periods can cause unconsciousness or might prove fatal. • Inhalation may cause irritation to the nose and throat, headache, nausea vomiting, dizziness, and drowsiness. • Unconsciousness or asphyxiation may result in poorly ventilated areas or confined spaces. WARNING Running engines produce heat. Engine parts, especially muffler, become extremely hot. Severe thermal burns can occur on contact. Combustible debris, such as leaves, grass, brush, etc. can catch fire. • Allow muffler, engine cylinder and fins to cool before touching. • Remove accumulated combustibles from muffler area and cylinder area. • Install and maintain in working order a spark arrester before using equipment on forestcovered, grass-covered, brush-covered unimproved land. The state of California requires this (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal land. WARNING Rotating parts can contact or entangle hands, feet, hair, clothing, or accessories. Traumatic amputation or severe laceration can result. • Operate equipment with guards in place. • Keep hands and feet away from rotating parts. • Tie up long hair and remove jewelry. • DO NOT wear loose-fitting clothing, dangling drawstrings or items that could become caught. WARNING Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than you can let go. Broken bones, fractures, bruises or sprains could result. • When starting engine, pull cord slowly until resistance is felt, then pull rapidly. • Remove all external equipment/engine loads before starting engine. • Direct coupled equipment components such as, but not limited to, blades, impellors, pulleys, sprockets, etc., must be securely attached. WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. 4
Page 1 and 2: www.mymowerparts.com For Briggs & S
Page 3: IN THE INTEREST OF SAFETY DANGER FO
Page 7 and 8: BRIGGS & STRATTON MODEL NUMBERING S
Page 9 and 10: Oil Recommendations Oil has four pu
Page 11 and 12: CAUTION: DO NOT use petroleum solve
Page 13 and 14: ÌÌ ÌÌ Fig. 8 ÌÌ Fig.
Page 15 and 16: NOTE: Idle speed may vary according
Page 17 and 18: Remove deposits from combustion cha
Page 19 and 20: The crankcase capacity of Vanguard
Page 21 and 22: 5. Turn fixed speed adjustable cont
Page 23 and 24: Fig. 43 Fig. 45 Oil Cooler 7. With
Page 25 and 26: TUNE-UP PROCEDURE A “Tune-Up,”
Page 28 and 29: Section 2 Troubleshooting Page ELEC
Page 30 and 31: Fouled Plug or Dead Cylinder To tes
Page 32 and 33: Fig. 6 4. Ground the other spar
Page 34 and 35: Charging System Identification Tabl
Page 36 and 37: Testing Alternator Output When test
Page 38 and 39: A Fig. 14 Fig. 15 NOTE: Serv
Page 40 and 41: The battery is not used for the lig
Page 42 and 43: Output Test WHEN CHECKING ALTERNATO
Page 44 and 45: 7. If NO or LOW output is found, be
Page 46 and 47: POWERLINK SYSTEM Some V-Twin engine
Page 48 and 49: If the previous tests have not reve
Page 50 and 51: Installation 1. Before installing b
Page 52 and 53: 3. Attach BLACK test lead to a good
Page 54 and 55:
Oil Pressure Test Switch Use Digit
Page 56 and 57:
Wiring Diagram For Starter Panel &
Page 58 and 59:
6. Insert BLACK test lead into COM
Page 60 and 61:
Governor Test Dynamic Check Perform
Page 62 and 63:
GASEOUS FUELED ENGINES TROUBLESHOOT
Page 64 and 65:
GASEOUS FUEL CARBURETOR ADJUSTMENT
Page 66 and 67:
Section 3 Engine Disassembly Page A
Page 68 and 69:
21 14 18 20 14 15 16 17 18 19 20 21
Page 70 and 71:
Î Î Fig. 4 Horizontal Cranksh
Page 72 and 73:
Remove Flywheel Fig. 13 Flywheel Nu
Page 74 and 75:
Remove Breather and Starter Motor 1
Page 76 and 77:
Section 4 Fuel Systems and Carburet
Page 78 and 79:
NOTE: Install the supports over the
Page 80 and 81:
Fuel Filter Replace the inline fuel
Page 82 and 83:
NOTE: The inspection in Step 2 is p
Page 84 and 85:
Fig. 30 Fig. 32 ÎÎÎÎ ÔÔÔ Ô
Page 86 and 87:
21. Position bowl drain as shown. 2
Page 88 and 89:
NOTE: The top and bottom edges of t
Page 90 and 91:
NOTE: Use LOCTITE® 222 on screw th
Page 92 and 93:
Fixed Main Jet Sizes Model 351700 L
Page 94 and 95:
Inspect Carburetor Inspect all part
Page 96 and 97:
3. Remove float and inlet needle.
Page 98 and 99:
Inspect Carburetor Inspect all part
Page 100 and 101:
Check Throttle, Choke Shaft and Bod
Page 102 and 103:
ÒÒ ÒÒ ÒÒ Fig. 103
Page 104 and 105:
CAUTION: DO NOT press on float to a
Page 106 and 107:
Remove Carburetor from Manifold Rem
Page 108 and 109:
NOTE: Parts containing rubber, such
Page 110 and 111:
Aisan Carburetor Model 610000 Gener
Page 112 and 113:
NOTE: Use LOCTITE 222 on screw thr
Page 114 and 115:
Section 5 Governor Page GENERAL INF
Page 116 and 117:
3. Loosen governor lever nut (3). 4
Page 118 and 119:
2. If necessary, remove the governo
Page 120 and 121:
Section 6 Cylinder Heads and Valves
Page 122 and 123:
5. Remove intake and exhaust valves
Page 124 and 125:
1. Measure valve stem diameter appr
Page 126 and 127:
Section 7 Starters Page GENERAL INF
Page 128 and 129:
C-Ring Style Disassemble CAUTION
Page 130 and 131:
4. Remove end cap and brush retaine
Page 132 and 133:
Brush retainers can be made from Pa
Page 134 and 135:
Pinion Gear Pinion gear replacement
Page 136 and 137:
Fig. 40 Assemble Pinion Gear 1. Lub
Page 138 and 139:
REWIND STARTER IDENTIFICATION Two r
Page 140 and 141:
ÓÓÓ ÓÓÓ 5. Carefully lift
Page 142 and 143:
ÓÓ ÓÓ ÓÓÓÓÓÓÓÓ ÓÓÓÓ
Page 144 and 145:
Section 8 Lubrication Systems Page
Page 146 and 147:
CRANKCASE BREATHER SERVICE Models 2
Page 148 and 149:
Models 540000, 610000 1. Remove two
Page 150 and 151:
Section 9 Cylinders and Crankcase C
Page 152 and 153:
NOTE: Recondition the cylinder bore
Page 154 and 155:
Insert Bushing Driver #19349 into b
Page 156 and 157:
Section 10 Crankshafts and Camshaft
Page 158 and 159:
INSPECT CAMSHAFT Inspect gear teeth
Page 160 and 161:
Section 11 Pistons, Rings and Conne
Page 162 and 163:
Models 540000, 610000 • Top Compr
Page 164 and 165:
Section 12 Engine Assembly Page ENG
Page 166 and 167:
3. Align timing marks on camshaft a
Page 168 and 169:
Fig. 13 2. Install valve covers wit
Page 170 and 171:
Install Armatures 1. Assemble armat
Page 172 and 173:
ÑÑ ÑÑ Fig. 29 a. Be sure lo
Page 174 and 175:
4. Install breather deflector (4) a
Page 176 and 177:
Final Engine Assembly • Install m
Page 178 and 179:
Section 13 Engine Specifications Pa
Page 180 and 181:
Torque Values Description Torque Ai
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Torque Values Description Air Clean
Page 188 and 189:
Starter Motor Support Block A start
Page 190 and 191:
Drill Size - Decimal Equivalent (In
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272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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