Factory 7 Fire-Breather 200cc Cylinder Kit - This is the ultimate 200cc cylinder kit. Diamond Racing adds an extreme port job to gain the maximum amount of power from the engine. It requires the use of 108-110 octane race gas, and you must send your head to have it re-worked for the cylinder. WARNING: This is a full-blown race cylinder, it's not for the weak and timid.
The CT Sonic cylinder has proven to be the highest output cylinder available for the Blaster. The cylinder was designed from top to bottom to make big horsepower over a wide power curve. The Sonic cylinder uses Honda CR250 reed cage to maximize flow and output. The cylinder also has a 3 port auxiliary exhaust port design, like nearly every current model 2 stroke MX bike design.
The Sonic cylinder kits are available in two basic packages: 200cc to meet AMA youth race rules and the unrivaled 240cc big bore package. The 200cc cylinder utilizes and aluminum sleeve and Nikasil plating to offer maximum cooling under race conditions.
The f7 or project blaster used to be Nikasil?