Give your Yamaha 250 some fresh wings with this Malossi Big Bore Kit. M319578

COMPLETE CYLINDER 4-STROKE

TECHNICAL FEATURES

Cylinder

Material: primary aluminium alloy with a high content of hardened and tempered silicon, cylinder liner with silicon carbide coating in a galvanic nickel die and crossed smoothing with two diamond passages with very limited tolerances.
Machining: on machine tools with high precision numerical control.
Cylinder-piston connection with an allowance of 0.05 mm.
Recalculated and upgraded heat exchange surfaces.

Piston

Ultra compact with 3 rings.
Material: special aluminium alloy with high silicon content, low thermal expansion and a tin facing on the sliding surfaces.
Machining on machine tools with numerical control.
Lightened and reinforced.
Upgraded heat exchange surfaces.

Piston rings

Compression - special rings with high sliding ease and very high mechanical resistance, in chromium-plated S10 spheroidal cast-iron.
1st scraper - ring in chromium-plated S10 spheroidal cast iron.
2nd three - piece scraper ring made of chromium-plated steel alloy.

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MBK MBK SKYLINER 250 4T LC
YAMAHA YAMAHA MAJESTY 250 4T LC
YAMAHA YAMAHA VERSITY XC 300 4T LC (H314E)
YAMAHA YAMAHA X MAX 250 4T LC