This top end piston kit is for 1973-1982 Yamaha GT1, GT80, GTMX and MX80 models. The kit includes a forged piston with MOS2 coating for break-in, a cylinder head gasket, cylinder base gasket, two reed valve gaskets, an exhaust pipe gasket and a wrist pin bearing. The kit price includes a 10% discount compared with purchasing the individual items separately.

Features

• Complete top end piston kit
• Includes forged piston
• MOS2 coated for break-in
• Includes cylinder head gasket
• Includes cylinder base gasket
• Includes 2 reed valve gaskets
• Includes exhaust pipe gasket
• Includes wrist pin bearing
• Kit price includes a 10% discount over individual items

Specifications

• VintCo Part Number: KTY55-1.5
• Piston size: 48.5 mm
• Oversize: 1.5 mm over
• Piston measurement: 48.45 mm
• Clearance: 0.05 mm
• Manufactured in Germany

Cross-Reference OEM Part Numbers

• Cylinder head gasket: 2F4-1181-00-00
• Cylinder base gasket: 367-11351-01-00
• Reed valve gasket: 3MT-13621-00-00
• Exhaust pipe gasket: 3MT-14613-00-00

Vehicle Fitments

• 1973 Yamaha GT1
• 1973 Yamaha GTMX
• 1974 Yamaha GT80
• 1974 Yamaha GTMX
• 1975 Yamaha GT80
• 1975 Yamaha GTMX
• 1976 Yamaha GT80
• 1976 Yamaha GTMX
• 1977 Yamaha GTMX
• 1978 Yamaha GTMX
• 1979 Yamaha GTMX
• 1980 Yamaha MX80
• 1981 Yamaha MX80
• 1982 Yamaha MX80