VintCo top end piston kit for the 1983 Yamaha YZ80, supplied as a complete rebuild set for top-end service. The kit includes a piston, rings, pin and clips, a top end bearing/wrist pin bearing, and a full top-end gasket set comprising the cylinder head, cylinder base, reed valve/intake and exhaust pipe gaskets. Components are made using modern materials and manufacturing techniques and are stated to provide OEM-level or better fitment and performance. The kit price is 10% lower than purchasing the components individually.

Features

• Complete top-end rebuild kit
• Includes piston, rings, pin and clips
• Includes top end bearing / wrist pin bearing
• Includes cylinder head gasket
• Includes cylinder base gasket
• Includes reed valve / intake gasket
• Includes exhaust pipe gasket
• Forged piston
• Piston manufactured in Germany
• MOS2-coated piston for break-in
• Intended for OEM-level or better fitment and performance

Specifications

• VintCo Part Number: KTY58-0.5
• Nominal piston size: 47.5mm
• Oversize: +0.5mm
• Additional oversize stated in source: +0.05mm over
• Dimension stated in kit details: 47.45mm
• Clearance: 0.05mm

Cross-Reference OEM Part Numbers

• Cylinder head gasket: 58T-11181-11-00
• Cylinder base gasket: 4V0-11351-10-00
• Reed valve gasket: 3TT-13621-00-00
• Exhaust pipe gasket: 4BR-14613-00-00

Vehicle Fitments

• 1983 Yamaha YZ80