272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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Torque Values Description Air Cleaner Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Guide Mounting Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Block Plate Mounting Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alternator Harness Clamp Screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Cleaner Base (to carburetor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Cleaner Support Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Armature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Blower Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Breather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carburetor to Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carburetor Intake Elbow to Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Crankcase Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cylinder Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Exhaust Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flywheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flywheel Fan Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Governor Control Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Governor Lever Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ignition Armature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intake Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Drain Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Pickup to Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Pump to Crankcase Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Regulator Rectifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rocker Arm Lock Nut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rocker Arm Stud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rotating Screen Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rotating Screen Studs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spark Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starter Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Valve Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Torque 190 in. lbs. (21 Nm) 90 in. lbs. (10 Nm) 90 in. lbs. (10 Nm) 35 in. lbs. (4 Nm) 90 in. lbs. (10 Nm) 65 in. lbs. (7 Nm) 65 in. lbs. (7 Nm) 35 in. lbs. (4 Nm) 90 in. lbs. (10 Nm) 90 in. lbs. (10 Nm) 45 in. lbs. (5 Nm) 90 in. lbs. (10 Nm) 90 in. lbs. (10 Nm) 125 in. lbs. (14 Nm) 200 in. lbs. (23 Nm) 350 in. lbs. (40 Nm) 90 in. lbs. (10 Nm) 200 in. lbs. (23 Nm) 150 ft. lbs. (203 Nm) 90 in. lbs. (10 Nm) 45 in. lbs. (5 Nm) 200 in. lbs. (23 Nm) 70 in. lbs. (8 Nm) 30 in. lbs. (3 Nm) 180 in. lbs. (20 Nm) 180 in. lbs. (20 Nm) 90 in. lbs. (10 Nm) 80 in. lbs. (9 Nm) 90 in. lbs. (10 Nm) 90 in. lbs. (10 Nm) 70 in. lbs. (8 Nm) 100 in. lbs. (11 Nm) 100 in. lbs. (11 Nm) 125 in. lbs. (14 Nm) 180 in. lbs. (20 Nm) 140 in. lbs. (16 Nm) 70 in. lbs. (8 Nm) 185
Vanguard Engines – Honing Fixture 10” (254 mm) 1-7/8” (48 mm) 3” (76 mm) 3-1/4” (83 mm) 6-11/32” (161 mm) 8-9/16” (217 mm) 2” (51 mm) 10” (254 mm) 8-5/32” (207 mm) 13/32” Thru Hole (4) (10 mm) CLAMP THIS END IN VISE Material: Wood 2” x 10” x 10” (51 mm x 254 mm x 254 mm) Cylinder Mounting Hardware Fasteners Required: 4 @ Crankcase Cover Screws, 4 @ Flat Washers 3/8” (9.5 mm) I.D. 186
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
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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.
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
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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
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Wiring Diagram For Starter Panel &
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6. Insert BLACK test lead into COM
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Governor Test Dynamic Check Perform
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GASEOUS FUELED ENGINES TROUBLESHOOT
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GASEOUS FUEL CARBURETOR ADJUSTMENT
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Section 3 Engine Disassembly Page A
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21 14 18 20 14 15 16 17 18 19 20 21
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Î Î Fig. 4 Horizontal Cranksh
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Remove Flywheel Fig. 13 Flywheel Nu
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Remove Breather and Starter Motor 1
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Section 4 Fuel Systems and Carburet
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NOTE: Install the supports over the
Page 80 and 81:
Fuel Filter Replace the inline fuel
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NOTE: The inspection in Step 2 is p
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Fig. 30 Fig. 32 ÎÎÎÎ ÔÔÔ Ô
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21. Position bowl drain as shown. 2
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NOTE: The top and bottom edges of t
Page 90 and 91:
NOTE: Use LOCTITE® 222 on screw th
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Fixed Main Jet Sizes Model 351700 L
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Inspect Carburetor Inspect all part
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3. Remove float and inlet needle.
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Inspect Carburetor Inspect all part
Page 100 and 101:
Check Throttle, Choke Shaft and Bod
Page 102 and 103:
ÒÒ ÒÒ ÒÒ Fig. 103
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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
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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
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2. If necessary, remove the governo
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Section 6 Cylinder Heads and Valves
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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
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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 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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