| 1 | Lock nut |
| 2 | Sleeve |
| 3 | Valve rocker |
| 4 | Adjusting bolt for valve gap |
| 5 | Valve rocker assy |
| 6 | Pusher guide subassembly |
| 7 | Pusher |
| 8 | Tappet |
| 9 | Camshaft |
| 10 | Pin valve |
| 11 | Gasket φ3 |
| 12 | Extension spring |
| 13 | Camshaft assy |
| 14 | Exhaust valve |
| 15 | Intake valve |
| 16 | Valve spring |
| 17 | Valve spring seat（一） |
| 18 | Valve spring seat（二） |
| 19 | Cap |