Specification:
- Performance: 21.5HP / 7500rpm
- Idle speed: 1000 rpm/min
- Propeller: 32 X 10 ; 32 X 12 ; 34 X 10
- Sparking plug: NGK CM6

Parameter:
- Exhaust Amount: 222.5 cm3
- Diameter X stroke: 45mm X 35mm
- Ratio of compression: 7.6:1
- Ratio of lubricating: 30:1
- Net Weight: 4950g
- Cross weight: 5610g