This top end piston kit is for 1978-1979 Yamaha YZ80 models and provides the main components required for a standard top end rebuild. The kit includes a German-made piston with break-in coating, cylinder head gasket, cylinder base gasket, reed valve gasket, exhaust pipe gasket and a wrist pin bearing. Kit pricing includes a 10% discount compared with purchasing the items individually.

Features

• Complete top end piston kit for Yamaha YZ80 models
• Includes piston, cylinder head gasket, cylinder base gasket, reed valve gasket, exhaust pipe gasket and wrist pin bearing
• Suitable for standard-size top end rebuilds
• Break-in coating applied to the piston
• Made in Germany
• Kit price includes a 10% discount over individual items

Specifications

• VintCo Part Number: KTY23-00
• Nominal piston size: 49 mm
• Piston diameter: 48.95 mm
• Piston-to-cylinder clearance: 0.05 mm
• Piston construction: Forged
• Piston coating: MOS2

Cross-Reference OEM Part Numbers

• Cylinder head gasket: 2J5-11181-00-00
• Cylinder base gasket: 2J5-11351-01-00
• Reed valve gasket: 87A-13621-00-00
• Exhaust pipe gasket: 3PA-14613-10-00

Vehicle Fitments

• 1978 Yamaha YZ80
• 1979 Yamaha YZ80