Yamaha YFM350 87-14 La Sleeve Cylinder Rebuild Kit

The foremost compatible top-end rebuild kit all in one box.
Features a Moly2000 centrifugally-spun, cast cylinder sleeved iron bore to provide better ring seal for better compression, more torque and more horsepower.
2-stroke kit comes complete with wear-resistant Moly2000 centrifugally-spun, cast cylinder sleeve, matching pro-forged or pro-cast piston kit, wrist pin bearing and complete top-end gasket set.
4-stroke kit comes with everything in the 2-stroke kit plus valve stem seals.