
| Reference | Part# | Description |
| 90 | YC50-20-90 | magneto cover M30×1.5 |
| 91 | YC50-20-91 | O-ring φ27.4×2.4 |
| 92 | YC50-20-92 | bolt GB5787 (M6×35) |
| 93 | YC50-20-93 | magneto crankcase |
| 93 | YC50-20-93GY | magneto crankcase 50CC 2013 |
| 94 | YC50-20-94 | magneto cover gasket |
| 95 | YC50-20-95 | magneto cable clamp |
| 96 | YC50-20-96 | bolt GB5787 (M5×25) |
| 97 | YC50-20-97 | sprocket cover |
| 98 | YC50-20-98 | clamp spring φ20 |
| 99 | YC50-20-99 | driving sprocket 14T |
| 100 | YC50-20-100 | oil seal φ30×20×5 |
| 101 | YC50-20-101 | left canckase |
| 102 | YC50-20-102 | bearing 6004 |
| 103 | YC50-20-103 | washer φ30×15×1.0 |
| 104 | YC50-20-104 | needle bearing |