Top Performance Black Trophy 40mm 50cc cylinder kit for Yamaha Jog and other scooters powered by the Horizontal Minarelli engine.
High quality, cast iron replacement cylinder kit. Ideal alternative to replacement stock cylinders in order to both increase power output while remaining reliable.
Teflon coated, 2 ring, piston with 10mm wrist pin. High compression, o-ring head.
Comes with cylinder, piston, rings, pin/clips, gasket set, and high-compression head.
Top 9931140