272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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Ì Ì Models 540000, 610000 1. Use a coin or screwdriver to twist the Easy Clean Access panel fasteners (1), Fig. 26 COUNTERCLOCKWISE until a CLICK is heard (approx. 3/4 turn). 2. Remove the panel (2). ÌÌ Ì Ì Fig. 28 Ì Fig. 26 3. Blow compressed air from the PTO side to clean the cooling fins (3), Fig. 27 around each cylinder and to back flush the cooling system. Fig. 29 Fig. 27 4. Insert the access panel tab into the blower housing slot. Be certain the access panel is correctly engaged to the blower housing. Push the panel completely into the housing. Twist each fastener CLOCKWISE until it “CLICKS”, approx. 3/4 turn. CAUTION: DO NOT run the engine unless the Easy Clean Access panel is correctly installed. Crankcase Oil Change Oil and Filter Drain oil while the engine is still warm. See Fig. 28 for approximate drain plug locations on vertical crankshaft engines; Fig. 29 for horizontal crankshaft engines. 1. Remove oil drain plug (1). Drain oil into approved container. 2. Remove dipstick. 3. Replace oil filter (2) every 100 hours. Before installing new filter, lightly oil filter gasket with new engine oil. 4. Screw filter on CLOCKWISE (arrow) by hand until gasket contacts filter adapter. Hand tighten an additional 1/2 - 3/4 turn. 5. Replace drain plug. 6. Refill crankcase slowly with new oil of proper service classification and viscosity grade. Refill to FULL mark on dipstick. CAUTION: DO NOT OVERFILL THE ENGINE WITH OIL! 17
The crankcase capacity of <strong>Vanguard</strong> V-<strong>Twin</strong> engines is approximately: • All (except Model 540000) – 48 oz. (1.4 liters) with filter • Models 540000, 610000 – 79 oz. (2.3 liters) with filter • Models 540000, 610000 – 71 oz. (2.1 liters) without filter NOTE: When checking oil level, screw the dipstick all the way in for accurate readings. 7. Start engine. Run at IDLE for 30 seconds and stop engine. Recheck oil level and add if required. Restart engine and check for oil leaks. Governor Adjustments CAUTION AVOID INJURY! Complete the governor static adjustment BEFORE starting or running engine. CAUTION: Do not bend governor link or distort governor lever. 2. Use a screwdriver (2) to rotate governor shaft COUNTERCLOCKWISE as far it will go. Torque governor nut to 70 in. lbs. (8 Nm). 3. Install throttle and choke control cables and check for proper operation. Dynamic Governor Adjustment NOTE: Carburetor mixture adjustments must be made before adjusting governed idle, throttle restrictor and top no-load RPM. • Tools Required, Fig. 31: Tachometer #19200 (1) or #19389 (3) Tang bender #19352 (2) • Incorrect adjustment could result in engine overspeeding, causing engine damage, property damage or personal injury. Static Governor Adjustment (Before Running Engine) 1. Loosen governor lever nut. Push on governor lever (1) until throttle is wide open, Fig. 30. Fig. 31 Manual Friction and Remote Speed Controls Governor spring is installed in #1 hole (3) in governor lever, Fig. 32. Fig. 30 Start and run engine for approximately 5 minutes to allow engine to warm up. 1. Move control lever to SLOW position. 2. Use tool #19352 (1) to bend governed idle tang (2) to obtain RPM shown: a. 1750 RPM – Governed Idle Spring #805453 (RED). b. 1100 RPM – Governed Idle Spring #805454 (WHITE). 18
Page 1 and 2: www.mymowerparts.com For Briggs & S
Page 3 and 4: IN THE INTEREST OF SAFETY DANGER FO
Page 5 and 6: WARNING Engines give off carbon mon
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: Remove deposits from combustion cha
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
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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
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Section 5 Governor Page GENERAL INF
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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
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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
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ÓÓÓ ÓÓÓ 5. Carefully lift
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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
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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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