| Item | Part No. | Part Name | Qty | Serial No. |
| (257-20-21500) | ENGINE ASS'Y | 1501- | ||
| KT15521-5409-1 | IDLING SETTING A. | 1501- | ||
| KT15521-5410-1 | BOLT ASS'Y | 1501- | ||
| 1 | KT15521-5425-1 | SCREW | 1501- | |
| 2 | KT15521-5426-1 | SPRING | 1501- | |
| 3 | KT15401-9201-1 | NUT | 1501- | |
| 4 | KT15521-9233-1 | NUT | 1501- | |
| 5 | KT15021-3366-1 | GASKET | 1501- | |
| 6 | KT15521-5427-1 | CAP | 1501- | |
| KT15527-5770-1 | LEVER ASS'Y | 1501- | ||
| 7 | KT15521-5165-2 | COVER | 1501- | |
| 8 | KT15611-5774-1 | SHAFT | 1501- | |
| 9 | KT15527-5772-1 | LEVER | 1501- | |
| 10 | KT04811-10070 | O-RING | 1501- | |
| 11 | KT05411-00420 | PIN,SPRING | 1501- | |
| 12 | KT15611-5751-1 | SPRING | 1501- | |
| 13 | KT15108-5728-4 | STOPPER | 1501- | |
| 14 | KT02056-50060 | NUT | 1501- | |
| 15 | KT07811-11210 | WIRE | 1501- | |
| 16 | KT07918-00001 | LEAD | 1501- | |
| 17 | KT15221-5166-1 | GASKET | 1501- | |
| 18 | KT01023-50618 | BOLT | 1501- |