272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

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NOTE: Use LOCTITE® 222 on screw threads. Fig. 55 Fig. 53 12. Assemble inlet needle retainer (19) to inlet needle (18). Assemble to float (17), Fig. 54. 16. Install emulsion tube (24), Fig. 56, using Screwdriver #19062. 17. If carburetor is equipped with anti-afterfire solenoid, install solenoid seat (25). 18. Install fixed main jet (26) using Screwdriver #19061. 13. Install float to carburetor body. Install float hinge pin (20) with swaged end out. NOTE: Float level is not adjustable. Fig. 56 19. Install bowl gasket (28), float bowl (27), washer and screw (29) or anti-afterfire solenoid (30), if equipped, Fig. 57. 20. Position bowl drain as shown. Torque screw or solenoid to 45 in. lbs. (5 Nm). Fig. 54 14. Install pilot jet (23), Fig. 55. 15. Install idle mixture screw (21) and spring (22). NOTE: DO NOT tighten screw. DO NOT install limiter cap at this time. Fig. 57 89
Nikki Carburetor Models 351700, 351400, 380700, 380400 Check Throttle, Choke Shaft and Body For Wear NOTE: The measurement in Step 1 is taken with the carburetor off of the intake manifold. 1. Lay carburetor on 1/4” (6.35 mm) raised flat surface (1). Check throttle and choke shaft clearance with a feeler gauge (2) as shown in Fig. 58. Throttle shaft and choke shaft clearance must not exceed 0.010” (0.25 mm). Replace either shaft if worn. Replace the carburetor of the body is worn or if either shaft clearance exceeds 0.010” (0.25 mm) when a new shaft is used. Disassemble NOTE: The carburetors used on vertical crankshaft Models 351700 and 380700, and horizontal crankshaft Models 351400 and 380400 are similar enough that the disassembly and reassembly procedures can be considered the same. The only significant differences in the carburetors are the location of the idle mixture screws and the fixed main jet orifice sizes. 1. Remove anti-afterfire solenoid (1) with washer (2), Fig. 60. 2. Remove fixed main jet plugs (3) with washers (4). Fig. 58 NOTE: The inspection in Step 2 is performed after the carburetor has been disassembled. 2. Inspect throttle shaft and choke shaft for wear (3). Replace if worn, Fig. 59. Fig. 60 3. Remove fixed main jets (7, 8), Fig. 61. Fig. 59 NOTE: The carburetor is equipped with a different size fixed main jet for each cylinder. The carburetor is marked L (6) for the #1 cylinder and R (5) for the #2 cylinder. The carburetor is marked in the upper body near the choke plate and the lower body near the main jet plugs. See Fig. 61. 90
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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
Page 34 and 35:
Charging System Identification Tabl
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Testing Alternator Output When test
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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 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
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ÓÓÓ ÓÓÓ 5. Carefully lift
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ÓÓ ÓÓ ÓÓÓÓÓÓÓÓ ÓÓÓÓ
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Section 8 Lubrication Systems Page
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CRANKCASE BREATHER SERVICE Models 2
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Models 540000, 610000 1. Remove two
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Section 9 Cylinders and Crankcase C
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NOTE: Recondition the cylinder bore
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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
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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