Yamaha G1 Engine Rebuild Kit (2-Cycle) Golf Cart Top End Piston/Cylinder/Gasket (1 year warranty) Repairs the top end of your 2-cycle Yamaha G1 engine. Our parts meet or exceed OEM quality standards. Kit includes: (1) Cylinder; (1) Piston (standard) size; (1) Piston ring set; (1) Piston Pin; (2) Snap Rings; (1) Head Gasket; (1) Base Gasket; (1) Exhaust Gasket; (1) Reed Valve Gasket Fits the Following Cart(s): Yamaha (1978-1981 and 1983-1989) G1 2-cycle models. WILL NOT WORK FOR 1982 models