1974-83 Yamaha XS650 TX650 Big Bore Cylinder Base Gasket - 85mm RD350 1975 Install it when polishing cannot

Install it when polishing cannot save the old piston or when corrosion is causing leaks

or spark becomes inconsistent after basic wiring checks

This petcock part controls or seals fuel flow at the tank outlet

XS650Direct part number: 15-6509

or brake pressure will not build consistently

1974-83 Yamaha XS650 TX650 Big Bore Cylinder Base Gasket - 85mm RD350 1975 Install it when polishing cannotBig Bore Cylinder Base Gasket 85mm. This cylinder base gasket seals the cylinder to crankcase joint and must align with the bore opening, studs, and oil passages. Replace this big bore cylinder base gasket whenever the old gasket is crushed, torn, oil soaked, leaking, or the joint has been opened for service. Fitment Compatibility Fits Yamaha: Yamaha TX650 1974 Yamaha XS650 (1975 81) Yamaha XS650S (1978 83) Product Details Gasket sealing part Seal