User Guide

AYP7143A59 (1995) Page 17 of 37
ENGINE/B&S
Ref # Part Number Qty Description
1 490450 CYLINDER ASSEMBLY
2 399265 P/N CONFLICT - CHECK WITH SUPPLIER
3 391086 SEAL, OIL
5 494240 HEAD, CYLINDER
7 271866 GASKET, CYLINDER HEAD
8 391406 BREATHER ASSEMBLY
9 27803 GASKET, VALVE COVER
10 94621 SCREW, STEMS
11 280100 TUBE, BREATHER
12 271916 GASKET, CRANKCASE COVER 1/64"
271997 GASKET, CRANKCASE COVER .005"
271996 GASKET, CRANKCASE COVER .009"
13 94622 SCREW, CYLINDER HEAD 3"
15 94239 PLUG, OIL DRAIN
16 495162 CRANKSHAFT
94196 KEY, TIMING GEAR
18 494238 BASE, ENGINE
20 291675 SEAL, OIL
22 94624 SCREW, SEMS, BASE MOUNTING
23 492326 FLYWHEEL & RING GEAR ASSY, MAGNETO
24 222698 KEY, FLYWHEEL
25 394661 PISTON ASSEMBLY, STANDARD
394662 PISTON ASSEMBLY .010" OVERSIZE
394663 PISTON ASSEMBLY .020" OVERSIZE
394664 PISTON ASSEMBLY .030" OVERSIZE
26 391780 RING SET, PISTON, STANDARD
392331 RING SET, PISTON, STANDARD SIZE
391781 RING SET, PISTON .010" OVERSIZE
391782 RING SET, PISTON .020" OVERSIZE
391783 RING SET, PISTON .030" OVERSIZE
24 260924 LOCK, PISTON PIN
28 299691 PIN ASSEMBLY, PISTON, STANDARD
391286 PIN ASSEMBLY, PISTON .005" OVER
29 490348 ROD ASSEMBLY, CONNECTING
490469 ROD ASSEMBLY, CONNECTING .020" UNDERSIZE
CRANKPIN
32 94671 SCREW, CONNECTING ROD
33 262246 VALVE, EXHAUST
24 262247 VALVE, INTAKE
35 65906 SPRING, INTAKE VALVE
36 26828 SPRING, EXHAUST VALVE
37 224502 GUARD, FLYWHEEL
40 221596 RETAINER, INTAKE VALVE
41 292260 RETAINER, EXHAUST VALVE
42 93630 RETAINER, EXHAUST VALVE ROTOCOIL(2)
45 262248 TAPPET-VALVE
46 212897 GEAR, CAM
51 272465 GASKET, CARBURETOR (CARBURETOR TO ELBOW)
52 272554 GASKET CARB
53 94637 STUD, CARBURETOR MOUNTING
75 224061 WASHER, SPRING
78 93805 SCREW, SEMS
95 94098 SCREW, THROTTLE
98 495800 SCREW, IDLE SPEED
104 231789 PIN, FLOAT HINGE
105 231855 VALVE ASSY, INLET NEEDLE
106 231854 INLET VALVE SEAT