Malossi 70cc Big Bore Cylinder Kit for Yamaha, Minarelli

Malossi's most popular 70cc street kit for Yamaha and Minarelli 50cc Two Stroke Engines. Very reliable, durable, and built to outlast the original parts.  10mm Wristpin
Malossi cast-iron cylinder kits: the best balance between component performance and life of the component.
The cast-iron cylinder kits produced by Malossi s.p.A. are designed and manufactured with the specific abjective of obtaining high combustion efficiency, long life, and a reliability that suits the Malossi name. Owing to the experience gained in the preparation of cylinder kits for race, Malossi engineers have developed the thermodynamics of cast-iron cylinder kits to the fullest and designed the inner fuid mechanics of the cylinder kit with fanatical precision (see the tranfer pipes, exhaust and combustion chamber), thereby obtaining a high level of turbolence in the combustion chamber. The latter has permitted a substantial reduction in specific consumption and a drastic reduction in the exhaust emission of pollutants.
Technical features
- Material: wearproof, laminate special cast iron
- Recalculated heat exchange surfaces
- NC machine-tool machining
- Transfer and exhaust disigned for maximum efficiency
- Lightened and reinforced, special aluminium alloy pistons with a high silicon content
- Optimized compression ratio
- Very high turbolence combustion chamber
Yamaha Zuma 2 Stroke, Yamaha Vino Two Stroke, Eton 2 Stroke, Adly 2 Stroke
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  • Model: 100-317083