Parts on group :
| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 010. | 12681-21110 | [1] | PISTON | STD |
| 010. | 12681-21910 | [1] | PISTON | +0.25MM |
| 010. | 12681-21920 | [1] | PISTON | +0.50MM |
| 020. | 12681-21050 | [1] | ASSY PISTON RING | STD |
| 020. | 12681-21090 | [1] | ASSY PISTON RING | +0.25MM |
| 020. | 12681-21100 | [1] | ASSY PISTON RING | +0.50MM |
| 030. | 12681-21310 | [1] | PIN PISTON | |
| 040. | 12681-21330 | [2] | CLIP PISTON PIN | |
| 050. | 12681-22010 | [1] | ASSY CONNECTING ROD | STD |
| 050. | 12681-22050 | [1] | ASSY CONNECTING ROD | -0.25MM |
| 050. | 12681-22060 | [1] | ASSY CONNECTING ROD | -0.50MM |
| 060. | 13921-22142 | [2] | BOLT CONNECTING ROD | |
| 070. | 12681-23032 | [1] | ASSY CRANKSHAFT | |
| 080. | 12681-24110 | [1] | GEAR CRANKSHAFT | |
| 090. | 08103-06205 | [1] | BEARING BALL | |
| 100. | 09500-00023 | [1] | SEAL OIL | |
| 110. | 12681-23550 | [1] | SEAL OIL | |
| 120. | 12681-23620 | [1] | SHIM CRANKSHAFT | 0.5MM |
| 120. | 12681-23630 | [1] | SHIM CRANKSHAFT | 0.6MM |
| 120. | 12681-23640 | [1] | SHIM CRANKSHAFT | 0.8MM |
| 120. | 12681-23650 | [1] | SHIM CRANKSHAFT | 0.9MM |
| 120. | 12681-23660 | [1] | SHIM CRANKSHAFT | 1.0MM |
| 120. | 12681-23670 | [1] | SHIM CRANKSHAFT | 1.2MM |
| 135. | 12192-27220 | [1] | COVER BLIND | |
| 190. | 12681-21850 | [1] | PISTON SET OVERSIZED | +0.25MM |
| 190. | 12681-21860 | [1] | PISTON SET OVERSIZED | +0.50MM |
