AYP 8904A Parts List
8904A (1999 & Before) Page 1 of 17
ENGINE PARTS ILLUSTRATION
8904A (1999 & Before) Page 2 of 17
ENGINE PARTS ILLUSTRATION
Ref # Part Number Qty Description
1 493260 CYLINDER ASSY
2 293708 BUSHING, CYLINDER
3 299819 SEAL, OIL
5 213861 HEAD, CYLINDER
7 272200 GASKET CYLINDER HEAD
8 494489 BREATHER, VALVE CHAMBER
9 272481 GASKET, VALVE COVER
9A 272238 GASKET, BAFFLE PLATE
10 94650 SCREW
11 231685 TUBE, BREATHER
12 272198 GASKET, CRANKCASE
13 94547 SCREW, CYLINDER HEAD
15 93418 PLUG, OIL DRAIN
16 493362 CRANKSHAFT
94388 TIMING GEAR KEY
18 493279 SUMP, ENGINE
20 399781 SEAL, OIL
22 94220 SCREW, HEX HEAD
94612 SCREW, HEX HEAD
23 492177 FLYWHEEL
24 222698 KEY, FLYWHEEL
25 493262 PISTON ASSY STANDARD SIZE
493385 PISTON ASSY
493386 PISTON ASSY
493387 PISTON ASSY
26 493261 RING SET, PISTON, STANDARD SIZE
493388 RING SET, PISTON, .010" OVERSIZE
493390 RING SET, PISTON, .030" OVERSIZE
27 26026 LOCK, PISTON PIN
28 298909 PIN ASSY, PISTON, STD
298908 PIN ASSEMBLY, PISTON .005" OVERSIZE
29 490566 ROD, CONNECTING
490743 ROD, CONNECTING, .020" UNDERSIZE
32 94405 SCREW CONNECTING ROD
33 262651 VALVE, EXHAUST
34 262652 VALVE, INTAKE
35 262224 SPRING, VALVE
40 93312 RETAINER, VALVE SPRING
45 262204 TAPPET, VALVE
46 492830 GEAR, CAM
47 493737 SLINGER, OIL
52 272199 GASKET, INTAKE ELBOW
54 94526 SCREW, HEX HEAD
55 492831 HOUSING REWIND STARTER
56 492832 PULLEY REWING STARTER
57 262594 SPRING, REWIND STARTER
58 280399 ROPE, REWIND STARTER (CUT TO 88-5/8)
59 396892 INSERT, HANDLE
60 393152 HANDLE, REWIND STARTER
69 280973 WASHER
69A 224322 WASHER
81 223664 LOCK, MUFFLER SCREW
95 94098 SCREW, THROTTLE
98 398185 SCREW IDLE ADJ
98A 493280 SCREW ASSY SPEED ADJ
104 231371 PIN, FLOAT HINGE
108 223471 VALVE CHOKE
116 REFER TO IMAGE
8904A (1999 & Before) Page 3 of 17
ENGINE PARTS ILLUSTRATION
Ref # Part Number Qty Description
118 493765 VALVE AND SPRING NEEDLE
121 493762 CARB OVERHAUL KIT
124 94525 SCREW, CARBURETOR MOUNTING
125 494217 CARB ASSY
127 REFER TO IMAGE
130 223470 VALVE THROTTLE
131 493267 SHAFT, THROTTLE
133 398187 FLOAT, CARBURETOR
134 398188 VALVE, INLET
137 REFER TO IMAGE
141 494218 SHAFT CHOKE
163 272296 GASKET, AIR CLEANER
187 492790 HOSE, FUEL
188 398540 SCREW, HEX HEAD
188A 94644 SCREW, HEX HEAD
201 262579 LINK, GOVERNOR
209 262660 SPRING, GOVERNOR
227 492349 LEVER, GOVERNOR
230 67072 WASHER, THRUST
258 94512 SCREW, HEX HEAD
284 94511 SCREW, HEX HEAD
300 490547 MUFFLER EXHAUST
304 493293 HOUSING, BLOWER
305 94513 SCREW, SEMS, AIR CLEANER
306 224324 SHIELD, CYLINDER
307 94515 SCREW HEX HD
332 92284 NUT, FLYWHEEL
333 802574 ARMATURE, MAGNETO
334 93381 SCREW, SEM, ARMATURE MOUNTING
337 802592 PLUG, SPARK
356 398808 WIRE, GROUND
358 493263 GASKET SET
363 19069 PULLEY, FLYWHEEL
383 89838 WRENCH SPARK PLUG
455 224250 CUP, STARTER
456 224321 RETAINER, REWIND STARTER
459 492833 PAWL, STARTER
461 262626 PIN, STARTER
515 262625 SPRING, TORSION
523 493950 CAP WITH DIPSTICK
524 280393 SEAL, FILLER TUBE
525 493952 TUBE OIL FILLER
529 280943 GROMMET BREATHER
562 92613 BOLT, GOVERNOR LEVER
572 224328 BAFFLE, CYLINDER
592 231082 NUT, HEX
601 93807 CLAMP HOSE
608 493295 STARTER ASSY REWIND
94128 SCREW, HEX HEAD
92987 NUT, HEX
613 94231 SCREW, HEX HEAD
615 94474 FASTENER
616 262578 CRANK, GOVERNOR
617 270344 SEAL, FUEL INTAKE TUBE
618 262749 SPRING CHOKE REWIND
620 493894 BRKT ASSY
621 396847 SWITCH, STOP
625 492717 TUBE FUEL INTAKE
8904A (1999 & Before) Page 4 of 17
ENGINE PARTS ILLUSTRATION
Ref # Part Number Qty Description
634 REFER TO IMAGE
635 66538 ELBOW, SPARK PLUG
670 280512 SPACER, FUEL TANK
670A 493823 SPACER, BRACKET
741 262598 GEAR, TIMING
842 280966 SEAL, O-RING
847 493459 DIPSTICK AND TUBE ASSY OIL FILLER
851 221798 TERMINAL, IGNITION CABLE
869 213512 SEAT, INTAKE VALVE
870 213513 SEAT, EXHAUST VALVE
871 262001 GUIDE, EXHAUST VALVE
63709 GUIDE, INTAKE VALVE
922 262640 SPRING, BRAKE
923 493442 BRAKE ASSEMBLY
949 281136 GUARD FINGER
955 493869 SCREW, BOWL MOUNTING
957 397974 CAP, FUEL TANK
966 492363 BASE AIR CLEANER
967 491588 SUB= 3364
968 280937 COVER AIR CLEANER
969 94120 SCREW, HEX HEAD
971 94269 SCREW, AIR CLEANER
971A 94121 SCREW, HEX HEAD
972 494528 TANK ASSY FUEL BOWL ASSY
975 493640 BOWL, FLOAT
977 490937 GASKET SET, CARBURETOR
1016 224278 COVER, REWIND STARTER
1019 494256 LABEL KIT
8904A (1999 & Before) Page 5 of 17
ENGINE PARTS ILLUSTRATION
8904A (1999 & Before) Page 6 of 17
ENGINE PARTS ILLUSTRATION
Ref # Part Number Qty Description
1 493260 CYLINDER ASSY
2 293708 BUSHING, CYLINDER
3 299819 SEAL, OIL
5 213861 HEAD, CYLINDER
7 272200 GASKET CYLINDER HEAD
8 494489 BREATHER, VALVE CHAMBER
9 272481 GASKET, VALVE COVER
9A 272238 GASKET, BAFFLE PLATE
10 94650 SCREW
11 231685 TUBE, BREATHER
12 272198 GASKET, CRANKCASE
13 94547 SCREW, CYLINDER HEAD
15 93418 PLUG, OIL DRAIN
16 493362 CRANKSHAFT
94388 TIMING GEAR KEY
18 493279 SUMP, ENGINE
20 399781 SEAL, OIL
22 94220 SCREW, HEX HEAD
94612 SCREW, HEX HEAD
23 492177 FLYWHEEL
24 222698 KEY, FLYWHEEL
25 493262 PISTON ASSY STANDARD SIZE
493385 PISTON ASSY
493386 PISTON ASSY
493387 PISTON ASSY
26 493261 RING SET, PISTON, STANDARD SIZE
493388 RING SET, PISTON, .010" OVERSIZE
493389 RING SET, PISTON, .020" OVERSIZE
493390 RING SET, PISTON, .030" OVERSIZE
27 26026 LOCK, PISTON PIN
28 298909 PIN ASSY, PISTON, STD
298908 PIN ASSEMBLY, PISTON .005" OVERSIZE
29 490566 ROD, CONNECTING
490743 ROD, CONNECTING, .020" UNDERSIZE
32 94405 SCREW CONNECTING ROD
33 262651 VALVE, EXHAUST
34 262652 VALVE, INTAKE
35 262224 SPRING, VALVE
40 93312 RETAINER, VALVE SPRING
45 262204 TAPPET, VALVE
46 492830 GEAR, CAM
47 493737 SLINGER, OIL
52 272199 GASKET, INTAKE ELBOW
54 94526 SCREW, HEX HEAD
55 492831 HOUSING REWIND STARTER
56 492832 PULLEY REWING STARTER
57 262594 SPRING, REWIND STARTER
58 280399 ROPE, REWIND STARTER (CUT TO 88-5/8)
59 396892 INSERT, HANDLE
60 393152 HANDLE, REWIND STARTER
69 280973 WASHER
69X 224322 WASHER
81 223664 LOCK, MUFFLER SCREW
95 94098 SCREW, THROTTLE
133 398187 FLOAT, CARBURETOR
98A 493280 SCREW ASSY SPEED ADJ
104 231371 PIN, FLOAT HINGE
108 223471 VALVE CHOKE
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