| Engine | Displacement | Power output (max.) |
| HH-series | ||
| HH100 | 389 cc (23.7 cu.in.) | 10.0 HP |
| HH160 | 453 cc (27.6 cu.in.) | 16.0 HP |
| OH-series | ||
| OH160 | 453 cc (27.6 cu.in.) | 16.0 HP |
| V-series | ||
| V50 | 200 cc (12.2 cu.in.) | 5.0 HP |
| V60 | 221 cc (13.5 cu.in.) | 6.0 HP |
| V-series | ||
| V60 | 221 cc (13.5 cu.in.) | 6.0 HP |
