Koshin Engine K420/USA Parts List
FIG.1 CRANKCASE. / GEAR ASSY, GOVERNOR. (E01)
| REF NO. | PART NO. | DESCRIPTION | QTY. |
|---|---|---|---|
| E01-1 | 1002007 | CRANKCASE SUBASSEMBLY. | 1 |
| E01-2 | 1002008 | SEAL, OIL | 1 |
| E01-3 | 1000526 | SENSOR, ENGINE OIL | 1 |
| E01-4 | 1000528 | PLUG, RUBBER | 1 |
| E01-5 | 1000056 | PROTECTOR, OIL | 1 |
| E01-6 | 1000005 | BOLT | 1 |
| E01-7 | 1000529 | WASHER， FLAT | 2 |
| E01-8 | 1000530 | BOLT, DRAIN PLUG | 2 |
| E01-9 | 1000531 | CLIP | 1 |
| E01-10 | 1000532 | ARM, GOVERNOR | 1 |
| E01-11 | 1000533 | SEAL, OIL | 1 |
| E01-12 | 1000021 | PIN | 1 |
| E01-13 | 1000724 | NUT | 1 |
| E01-14 | 1000061 | BOLT | 2 |
| E01-15 | 1000534 | WASHER， FLAT | 1 |
| E01-16 | 1002009 | BEARING， DEEP GROOVE BALL | 1 |
FIG.2 COVER SUBASSEMBLY, CRANKCASE (E02)
| REF NO. | PART NO. | DESCRIPTION | QTY. |
|---|---|---|---|
| E02-1 | 1002010 | COVER, CRANKCASE | 1 |
| E02-2 | 1001666 | GASKET, CRANKCASE | 1 |
| E02-3 | 1001667 | PLUG SUBASSEMBLY, ENGINE OIL | 1 |
| E02-4 | 1001668 | DIPSTICK SUBASSEMBLY, OIL | 1 |
| E02-5 | 1000344 | PIN | 2 |
| E02-6 | 1000540 | BOLT | 7 |
| E02-7 | 1000544 | BEARING， DEEP GROOVE BALL | 1 |
| E02-8 | 1000542 | GEAR ASSY, GOVERNOR | 1 |
| E02-9 | 1001959 | SEAL, OIL | 1 |
| E02-10 | 1002009 | BEARING， DEEP GROOVE BALL | 1 |
FIG.3 HEAD SUBASSEMBLY, CYLINDER / PLUG,SPARK (E03)
| REF NO. | PART NO. | DESCRIPTION | QTY. |
|---|---|---|---|
| E03-1 | 1002011 | GASKET, CYLINDER HEAD | 1 |
| E03-2 | 1002012 | COVER SUBASSEMBLY, CYLINDER HEAD | 1 |
| E03-3 | 1001675 | GASKET, CYLINDER HEAD COVER | 1 |
| E03-4 | 1002013 | TUBE, BREATHER | 1 |
| E03-5 | 1000521 | BOLT, CYLINDER HEAD | 1 |
| E03-6 | 1000523 | Cylinder epicranium bolt seal&gasket unit | 1 |
| E03-7 | 1001679 | STUD | 2 |
| E03-8 | 1001680 | STUD | 2 |
| E03-9 | 1000516 | PIN | 2 |
| E03-10 | 1000515 | BOLT, CYLINDER HEAD | 4 |
| E03-11 | 1001019 | PLUG, SPARK | 1 |
| E03-12 | 1001683 | HEAD SUBASSEMBLY, CYLINDER | 1 |
FIG.6 TRAIN,VALVE / CAMSHAFT SUBASSEMBLY （E06）
| REF NO. | PART NO. | DESCRIPTION | QTY. |
|---|---|---|---|
| E06-1 | 1001692 | CAMSHAFT ASSY. | 1 |
| E06-4 | 1000818 | VALVES SET | 1 |
| E06-5 | 1000567 | SPRING, VALVE | 2 |
| E06-6 | 1000560 | RETAINER， EXHAUST VALVE | 2 |
| E06-7 | 1000561 | R0TATOR, VALVE | 1 |
| E06-8 | 1000562 | GUIDE, SEAL | 1 |
| E06-9 | 1000559 | SEAT, VALVE SPRING | 1 |
| E06-10 | 1000563 | TAPPET, VALVE | 2 |
| E06-11 | 1000564 | LIFTER SUBASSEMBLY, VALVE | 2 |
| E06-12 | 1000565 | PLATE SUBASSEMBLY, LIFTER STOPPER | 1 |
| E06-13 | 1000047 | BOLT, ROCKER SHAFT | 2 |
| E06-14 | 1000566 | ROCKER, VALVE | 2 |
| E06-15 | 1000049 | NUT， VALVE ADJUSTING | 2 |
| E06-16 | 1000050 | NUT, VALVE LOCK | 2 |
| E06-17 | 1000556 | RETAINER, VALVE SPRING | 1 |
FIG.11 CONTROL ASSY, THROTTLE （E11）
| REF NO. | PART NO. | DESCRIPTION | QTY. |
|---|---|---|---|
| E11-1 | 1002020 | CONTROL ASSY, THROTTLE | 1 |
| E11-2 | 1000005 | BOLT | 2 |
| E11-3 | 1000590 | SPRING, THROTTLE VALVE RETURNING | 1 |
| E11-4 | 1000591 | ROD, GOVERNEOR | 1 |
| E11-5 | 1000593 | SUPPORT SUBASSEMBLY, GOVERNOR | 1 |
| E11-6 | 1000069 | NUT | 1 |
| E11-7 | 1000091 | BOLT, GOVERNOR SUPPORT | 1 |
| E11-8 | 1002021 | SPRING, GOVERNOR | 1 |
FIG.14 TANK ASSY, FUEL（F03）
