Top end piston kit for Yamaha TY250 models from 1974 to 1977, supplied for top end rebuild work with an oversized piston, matched gasket set and wrist pin bearing. The kit includes the components required for the cylinder head, cylinder base, reed valve and exhaust pipe, together with a forged piston featuring an MOS2 break-in coating.

Features

• Kit price includes a 10% discount compared with purchasing the items individually
• Complete top end kit for engine rebuild work
• Includes piston, cylinder head gasket, cylinder base gasket, reed valve gasket, exhaust pipe gasket and wrist pin bearing
• Includes MOS2-coated piston for break-in

Specifications

• VintCo Part Number: KTY42-1.5
• Piston construction: Forged
• Country of manufacture: Germany
• Coating: MOS2
• Nominal size: 71.5 mm
• Oversize: 1.5 mm
• Piston diameter: 71.44 mm
• Piston clearance: 0.06 mm

Cross-Reference OEM Part Numbers

• Cylinder head gasket: 434-11181-00-00
• Cylinder base gasket: 364-11351-01-00
• Reed valve gasket: 87A-13621-00-00
• Exhaust pipe gasket: 214-14613-09-00

Vehicle Fitments

• 1974 Yamaha TY250
• 1975 Yamaha TY250
• 1976 Yamaha TY250
• 1977 Yamaha TY250