The GYTR High Compression Piston Kit provides a performance boost throughout the rpm range while maintaining a high level of durability. Machined valve pockets provide additional valve clearance when used with higher lift camshafts. The kit includes piston rings, piston pin, and clips (uses stock replacements). Requires use of minimum 100-octane racing fuel. Boosts engine compression ratio to 13.2:1. 1.5 to 3 HP increase throughout most of the power band. No crankshaft rebalancing necessary. Uses stock gaskets (not included).
NOTE: This accessory is restricted to closed-course competition use.
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North Ridge Yamaha
5929 North Ridge West (Route 20)
Geneva, OH 44041-9665
Phone: (440) 466-2712