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BRIGGS & STRATrON
4-CYCLE ENGINE
MODEL NO. 12H802
TYPE NO. 2640-B1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
1 493260 Cylinder Assembly 127 694468 O Plug-Welch
2 399269 Ktt-Bushlr_/Seal 130 691203 Vatve-Thtottte
3 299819 • Seal-Oil (Magneto Side) 133 398187 Float-Carburetor
4 493278 Sump.Engine 134 398188 _ Valve-Needle/Seat
5 691160 Head-Cylinder 137 693981 _: Gasket-Float Bowl
7 692249 ,+ Gasket.Cylinder Head 146 690979 Key-Timing
8 695250 Breather Assembly 159 691753 Bracket-Air Cleaner Primer
9 272481 ,+ Gasket-Breather 163 272653,O:_ Gasket-Air Cleaner
10 691_25 Screw (Breather Assembly) 167 691050 Line-Fuel (Cut to Required
11 691781 Tube-Breather Length)
12 692232 • Gasket-Crankcase 188 690877 Screw (Control Bracket)
13 690912 Screw (Cylinder Head) 190 690940 Screw (Fuel Tank)
15 691680 Plug-Oil Drain 202 691828 Link-Mechanical Governor
16 691451 Crankshaft 209 690318 Spring-Governor
Bracket-Control20 399781 • Seal-Oil (PTO Side) 222 692031
22 691092 Screw (Er_j_r,_ Sump) 227 690763 Control Lever-Governor
23 692315 Flywheel 276 271716 O:r Sealing Washer
24 222698 Key-Flywheel 287 690940 Screw (Dipstick Tube)
25 499429 Piston Assembly (Standard) 300 692038 Muffler
499430 Piston Assembly (.010" O.S.) 304 695892 Housing.Blower
499431 Piston Assembly (.020" O.S.) 305 691108 Screw (Blower Housing)
499432 Piston Assembly (.030" O.S.) 306 690450 Shield-Cylinder
26 499426 P,k_ Set-Piston (Standard) 307 690345 Screw ((_y_h_er Shield)
499426 Ring Set-Piston (.010_O.S.) 332 690662 Nut (Flywheel)
499427 Ring Set-Piston (.020"O.S.) 333 802574 Armature*Magneto
499428 Ring Set-Piston (.030" O.S.) 334 691061 Screw (Armature Magneto)
27 691866 Lock-Piston Pin 337 802592 Spark Plug
28 499423 Pin-Piston 356 692390 Wire-Stop
29 499424 Rod-Connecting 358 497316 Engine Gasket Set
32 691664 Screw (Conne_Bng Rod) 363 19069 Fbtwhsel Puller
32A 695759 Screw (Connecting Rod) 365 692524 Screw (Carburetor)
33 262651 Valve-Exhaust 383 89638 Wrench-Spark Plug
34 262652 Valve-Intake 404 690272 Washer (Governor Crank)
35 691270 Spring-Valve Intake) 425 690670 Screw (Air Cleaner Cover)
36 691270 Spring-Valve (Exhaust) 443 692523 Screw (Air Cleaner Primer
40 692194 Retainer-Valve Base)
43 691997 StinBer-GovemodOU 446 491566 F_tter-AirClearer Cartr_ge
45 690548 Tappet-Valve 455 691219 Cup-Flywheel
46 691449 Camshaft 456 692299 Plate-Pawl Fdcgon
48 498826 Short Block (Replacement 459 281505 PawI-Ratchet
Engine 12J802-2915-B1) 505 231082 Nut (Governor Control Lever)
50 497465 Manifold-Intake
523 495264 Dipstick
51 272199 • Gasket-Intake 524 692296 • Seal-Dipstick Tube
64 691650 Screw (Intake Manifold) 526 495266 Tube_D_pstLck
55 691421 Housing-Rewind Starter 529 691923 Grommet
58 692259 Rope-Starter (Cut to 562 92613 Bolt Governor Control Lever)
Cover-Brea her PassageRequired Length) 584 692342
60 281434 Grip-Starter Rope 585 691879 • Gasket-Breather Passage
65 690759 Screw (Rewind Starter) 592 690800 Nut Rewind Stader)
81 691740 Lock-Muffler Screw 597 691696 Screw (Paw FdcUonPlate)
95 691636 Screw !_lhrot6e Valve)
97 493267 Sha6-Throttle Included in Engine Gasket Set, Key. No.
104 691242 _ Pin-Float Hinge 358
117 494870 Jet-Main (Standard) £1 Included In Carburetor Overhaul Kit, Key.
497315 Jet-Main High Attitude) No. 121
121 498260 Kit-Carburetor Overhau :1: Included in Carburetor Gasket Set, Key.
125 498170 Carburetor No. 977
+ I_ In VSNe Overhaul Kit, Key. No.
1095
NOTE: All component dimensions given in U.S.
inches 1 inch = 25.4 mm
44
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