TOP END PISTON KIT 80-81 YAMAHA YZ 250 71.5mm +1.5mm OVER VINTCO KTY12-1.5

This top end piston kit is a complete rebuild set for the 1980–1981 Yamaha YZ250. It includes a VintCo piston kit with piston, rings, pin and clips, a top end bearing, and a full top-end gasket kit with head, base, intake and exhaust gaskets. The components are manufactured using modern materials and production methods for OEM-equivalent fitment and performance. This 71.5 mm kit is +1.5 mm oversize, additional size options are available, and 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
• Includes full top-end gasket kit
• Supplied with head gasket
• Supplied with base gasket
• Supplied with intake gasket
• Supplied with exhaust gasket
• OEM-referenced for exact fitment

Specifications

• VintCo Part Number: KTY12-1.5
• Bore size: 71.5 mm
• Oversize: +1.5 mm
• Piston type: Forged
• Piston coating: MoS2 break-in coating
• Country of manufacture: Germany
• OEM piston reference size: 71.44 mm
• Clearance: 0.06 mm

Cross-Reference OEM Part Numbers

• Piston: 2K7-11631-01-96
• Head gasket: 3R4-11181-00-00
• Base gasket: 3R4-11351-01-00
• Intake gasket: 80L-13621-01-00
• Exhaust gasket: 3R4-14613-00-00
• Wrist pin bearing: 93310-218A6-00

Vehicle Fitments

• 1980 Yamaha YZ250
• 1981 Yamaha YZ250