VintCo KTY08-00 is a complete top end piston kit for the 1975 Yamaha MX250 and 1976 Yamaha YZ250 with a 70.0 mm standard bore. It is intended for top end rebuilds and includes a piston kit with piston, rings, pin and clips, a top end bearing, and a full top-end gasket set comprising the head gasket, base gasket, intake gasket, and exhaust gaskets. The kit is produced using modern materials and manufacturing methods for OEM-equivalent fit and performance, and is supplied as a combined package priced 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 set
• Supplied with head gasket, base gasket, intake gasket, and exhaust gaskets
• Intended for standard-bore top end rebuilds
• Manufactured for OEM-equivalent fit and performance
• Kit pricing includes a 10% saving compared with buying the components individually
• Additional size options are available

Specifications

• VintCo Part Number: KTY08-00
• Bore size: 70.0 mm
• Bore type: Standard
• Piston diameter: 69.94 mm
• Piston clearance: 0.06 mm
• Piston construction: Forged
• Piston coating: MoS2
• Country of manufacture: Germany

Cross-Reference OEM Part Numbers

• Piston: 2K7-11631-01-96
• Head gasket: 434-11181-00-00
• Base gasket: 364-11351-01-00
• Intake gasket: 8Y7-13556-01-00
• Exhaust gasket: 214-14613-09-00
• Exhaust gasket: 248-14623-10-00
• Wrist pin bearing: 93310-218A6-00

Vehicle Fitments

• 1975 Yamaha MX250
• 1976 Yamaha YZ250