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2-Stroke Ported Cylinder and head(CR101.5 Big bore pictured)
The exhaust ports and the combustion chamber are smoothened and brought to a full polish. The Intake and transfer ports get the rough casting flaws removed and finished with glass bead. Removing casting flaws and polishing will gain significant power in midrange and top-end without loosing any low end power. As a final step we resurface the gasket area to ensure proper sealing of the head gasket.