This top end piston kit is for the 1986 Yamaha YZ250 and combines a forged piston manufactured in Germany with the related top end gaskets, O-ring and wrist pin bearing required for top end service work. The piston is supplied with an MOS2 coating for running-in, and the kit price is set at 10% below the combined price of the individual components.

Features

• Complete top end piston kit
• Forged piston
• MOS2-coated piston for running-in
• Includes head gaskets
• Includes base gasket
• Includes intake gasket
• Includes exhaust pipe gasket
• Includes holder gasket
• Includes YPVS housing gasket
• Includes O-ring
• Includes wrist pin bearing

Specifications

• VintCo Part Number: KTY38-1.5
• Nominal piston size: 69.5 mm
• Piston size: 69.44 mm
• Oversize: 1.5 mm over
• Piston clearance: 0.06 mm
• Piston manufacture origin: Germany

Cross-Reference OEM Part Numbers

• Head Gasket: 93211-17405-00
• Head Gasket: 93210-77363-00
• Base Gasket: 1LU-11351-01-00
• Intake Gasket: 39X-13621-11-00
• Exhaust Pipe Gasket: 24Y-14613-10-00
• Holder Gasket: 5X4-1131N-10-00
• O-ring: 93210-270A8-00
• YPVS Housing Gasket: 1LU-11993-01-00

Vehicle Fitments

• 1986 Yamaha YZ250