Parts on group :
| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 010. | 12008-01050 | [1] | ASSY COVER CRANKCASE | |
| 020. | 15109-33640 | [1] | PLUG PIN | |
| 030. | 12182-01180 | [1] | GASKET CRANKCASE | |
| 040. | 05012-00818 | [2] | PIN,STRAIGHT | |
| 050. | 12181-91110 | [8] | BOLT | <=551210 |
| 050. | 12181-91110 | [6] | BOLT | >=551211 |
| 055. | 13383-91110 | [2] | BOLT | >=551211 |
| 060. | 13921-91120 | [1] | BOLT | |
| 070. | 12185-02110 | [1] | BLOCK CYLINDER | |
| 080. | 12181-03022 | [1] | ASSY CYLINDER HEAD | |
| 090. | 12181-13950 | [1] | GUIDE INTAKE VALVE | FOR SERVICE |
| 100. | 12181-13960 | [1] | GUIDE EXHAUST VALVE | FOR SERVICE |
| 110. | 12181-13110 | [1] | VALVE INTAKE | |
| 120. | 12181-13122 | [1] | VALVE EXHAUST | |
| 130. | 12181-13570 | [2] | RING VALVE GUIDE | |
| 140. | 12181-13240 | [2] | SPRING VALVE | |
| 150. | 12181-13340 | [1] | RETAINER IN-SPRING | |
| 160. | 12181-13330 | [1] | RETAINER EX-SPRING | |
| 170. | 15221-13360 | [2] | COLLET VALVE SPRING | |
| 180. | 15261-13360 | [2] | COLLET,VALVE SPRING | |
| 190. | 12181-13150 | [1] | SEAL VALVE STEM | |
| 200. | 12181-13410 | [2] | WASHER VALVE SPRING | |
| 210. | 12181-03310 | [1] | GASKET CYLINDER HEAD | |
| 220. | 12181-94540 | [2] | PIPE KNOCK | |
| 230. | 12627-03450 | [2] | BOLT CYLINDER HEAD | |
| 240. | 12181-03462 | [2] | BOLT CYLINDER HEAD | |
| 250. | 12181-03472 | [1] | BOLT CYLINDER HEAD | |
| 260. | 01754-50850 | [1] | BOLT,FLANGE | |
| 270. | 12181-03540 | [2] | WASHER HEAD BOLT | |
| 280. | 13901-33750 | [3] | PLUG,DRAIN | |
| 290. | 04714-00120 | [3] | PACKING |
