| Item | Part No. | Part Name | Qty | Serial No. |
| YM121254-77011 | STARTING MOTOR ASS'Y | 21386-39050 | ||
| 1 | YM121254-77400 | ARMATURE ASS'Y | 21386-39050 | |
| 2 | YM121254-77410 | BEARING,BALL | 21386-39050 | |
| 3 | YM121254-77420 | BEARING,BALL | 21386-39050 | |
| YM121254-77430 | WASHER KIT | 21386-39050 | ||
| 4 | YM121254-77440 | WASHER | 21386-39050 | |
| 5 | YM121254-77450 | WASHER | 21386-39050 | |
| 6 | YM121254-77460 | WASHER,SPRING | 21386-39050 | |
| 7 | YM121254-77470 | WASHER | 21386-39050 | |
| YM121254-77480 | STOPPER SET | 21386-39050 | ||
| 8 | YM121254-77490 | STOPPER,PINION | 21386-39050 | |
| 9 | YM121254-77500 | CLIP | 21386-39050 | |
| 10 | YM121254-77510 | YOKE ASS'Y | 21386-39050 | |
| 11 | YM121254-77520 | FIELD COIL ASS'Y | 21386-39050 | |
| 12 | YM121254-77530 | SCREW | 21386-39050 | |
| 13 | YM121254-77540 | BRUSH (+) | 21386-39050 | |
| 14 | YM121254-77550 | REAR COVER ASS'Y | 21386-39050 | |
| YM121254-77560 | BOLT | 21386-39050 | ||
| 15 | YM121254-77570 | BRUSH HOLDER ASS'Y | 21386-39050 | |
| 16 | YM121254-77580 | BRUSH (-) | 21386-39050 | |
| 17 | YM121254-77590 | SPRING | 21386-39050 | |
| YM121254-77600 | CENTER BEARING A. | 21386-39050 | ||
| 18 | YM119129-77210 | SEAL,OIL | 38535-39050 | |
| YM121254-77610 | SEAL,OIL | 21386-38534 | ||
| 19 | YM121254-77620 | BEARING,NEEDLE | 21386-39050 | |
| 20 | YM121254-77630 | O-RING | 21386-39050 | |
| 21 | YM121254-77640 | GEAR SHAFT ASS'Y | 21386-39050 | |
| 22 | YM121254-77650 | INNER | 21386-39050 | |
| 23 | YM121254-77661 | PINION ASS'Y | 21386-39050 | |
| 24 | YM121254-77670 | MAGNETIC SWITCH A. | 21386-39050 | |
| 25 | YM121254-77681 | GEAR CASE ASS'Y | 21386-39050 | |
| 26 | YM121254-77690 | METAL | 21386-39050 | |
| YM121254-77700 | SHIFT LEVER ASS'Y | 21386-39050 | ||
| 27 | YM121254-77710 | LEVER,SHIFT | 21386-39050 | |
| 28 | YM121254-77720 | PIN | 21386-39050 | |
| YM121254-77730 | COVER ASS'Y | 21386-39050 | ||
| 29 | YM121254-77740 | COVER | 21386-39050 | |
| 30 | YM121254-77750 | COVER | 21386-39050 | |
| 31 | YM121254-77760 | COVER | 21386-39050 | |
| 32 | YM121254-77770 | BOLT | 21386-39050 | |
| 33 | YM121254-77780 | SCREW | 21386-39050 | |
| 34 | YM121254-77790 | SCREW | 21386-39050 | |
| 35 | YM26106-060302 | BOLT | 21386-39050 | |
| 36 | YM26106-060452 | BOLT | 21386-39050 | |
| 37 | YM121254-77810 | COVER | 21386-39050 |