Quick view Yamaha 1989-1991 Yamaha YFM250 Moto-4 Top End Rebuild Kit Compare $742.47 $400.00 1989-1991 Yamaha YFM250 Moto-4 Top End Rebuild Kit includes: ( 1 ) Refurbished Genuine OEM Yamaha Cylinder PN 5HH-E1310-10-C0 Cylinder has been Bored and Honed to 2nd Over Size factory specificationsVapor Blasted, Re-painted and oven cured with Yamaha... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List