272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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Remove Carburetor from Manifold Remove carburetor gaskets (2) and spacer (1), Fig. 114. Discard carburetor gaskets. Fig. 116 Replace either shaft if worn. Fig. 114 Check Throttle, Choke Shaft and Body NOTE: The measurement in Step 1 is taken with the carburetor off of the intake manifold. 1. Lay carburetor on flat surface and check throttle and choke shaft clearance as shown in Fig. 115. Throttle shaft and choke shaft clearance (1) must not exceed 0.010” (0.25 mm). Replace the carburetor if the body is worn or if either shaft clearance exceeds 0.010” (0.25 mm) when a new shaft is used. Disassemble 1. Remove carburetor, see Section 3. 2. Remove two screws and float bowl (2), Fig. 117. Discard O-ring. 3. Use 13 mm thin profile wrench to remove fuel solenoid (1) from float bowl. Discard gasket (3). CAUTION: Do not damage fixed main jet and housing when removing solenoid. Fig. 115 Fig. 117 NOTE: The inspection in Step 2 is performed after the carburetor has been disassembled. 2. Inspect throttle shaft and choke shaft for wear on the shaft bore surfaces (2), Fig. 116. 4. Remove main jet from carburetor body. 5. Remove float hinge pin (5), float (8) and inlet needle (4), Fig. 118. 6. Remove emulsion tube body (7) and gasket (6). Discard gasket. 105
Fig. 118 Fig. 121 7. Remove cover plate (10). Discard gasket (11), Fig. 119. 11. Mark throttle plates (16), Fig. 122, before removal so they will be re-installed in the original position. Sides of throttle plate are beveled. Fig. 122 Fig. 119 8. Remove screws and choke plate (12), Fig. 120. 9. Remove choke shaft. Discard seal (13). 12. Remove screws, throttle plates and throttle shaft with seal. Discard seal (17). This completes the carburetor disassembly procedure. Clean Carburetor 1. Disassemble carburetor. 2. Remove and discard all old gaskets, seals and sealing material. CAUTION AVOID INJURY! Fig. 120 10. Remove nozzle body (14), Fig. 121. Discard gasket (15). • Wear suitable protection when using cleaners. Follow instructions on container. 3. Use a commercial carburetor cleaner (such as Briggs & Stratton Spray Cleaner, #100041 or 100042) to clean carburetor parts and body. 106
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www.mymowerparts.com For Briggs & S
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IN THE INTEREST OF SAFETY DANGER FO
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WARNING Engines give off carbon mon
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BRIGGS & STRATTON MODEL NUMBERING S
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Oil Recommendations Oil has four pu
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CAUTION: DO NOT use petroleum solve
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ÌÌ ÌÌ Fig. 8 ÌÌ Fig.
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NOTE: Idle speed may vary according
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Remove deposits from combustion cha
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The crankcase capacity of Vanguard
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5. Turn fixed speed adjustable cont
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Fig. 43 Fig. 45 Oil Cooler 7. With
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TUNE-UP PROCEDURE A “Tune-Up,”
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Section 2 Troubleshooting Page ELEC
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Fouled Plug or Dead Cylinder To tes
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Fig. 6 4. Ground the other spar
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Charging System Identification Tabl
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Testing Alternator Output When test
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A Fig. 14 Fig. 15 NOTE: Serv
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The battery is not used for the lig
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Output Test WHEN CHECKING ALTERNATO
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7. If NO or LOW output is found, be
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POWERLINK SYSTEM Some V-Twin engine
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If the previous tests have not reve
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Installation 1. Before installing b
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3. Attach BLACK test lead to a good
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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 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
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Section 10 Crankshafts and Camshaft
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INSPECT CAMSHAFT Inspect gear teeth
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Section 11 Pistons, Rings and Conne
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Models 540000, 610000 • Top Compr
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Section 12 Engine Assembly Page ENG
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3. Align timing marks on camshaft a
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Fig. 13 2. Install valve covers wit
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Install Armatures 1. Assemble armat
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ÑÑ ÑÑ Fig. 29 a. Be sure lo
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4. Install breather deflector (4) a
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Final Engine Assembly • Install m
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Section 13 Engine Specifications Pa
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Torque Values Description Torque Ai
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Torque Values Description Air Clean
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Starter Motor Support Block A start
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Drill Size - Decimal Equivalent (In
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272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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