YAMAHA YZ450F 03-09 EXHAUST VALVE GUIDE +.010″ OVERSIZE – 80-80239

Description

Yamaha® YFZ 450 2004-2009
Yamaha® YFZ 450X 2008-2011
Yamaha® YFZ 450R 2009-2018
Yamaha® YFZ 450SE 2010-2018
Yamaha® WR 450 2003-2015
Yamaha® YZ 450F 2003-2009

We choose to use the copper based C63000 nickel-aluminium bronze as a material to make our bronze valve guides because of its ideal characteristics for the application. The 5% nickel content provides superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. KPMI® guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, which promotes high performance and endurance.