Kibblewhite Exhaust Valve Guides for 01-11 Yamaha YZ250F

Kibblewhite Exhaust Valve Guides for 01-11 Yamaha YZ250F

Kibblewhite Exhaust Valve Guides for 01-11 Yamaha YZ250F: Automotive. Buy Kibblewhite Exhaust Valve Guides for 01-11 Yamaha YZ250F: Valve Parts - ✓ FREE DELIVERY possible on eligible purchases. KPMI choose to use C630 nickel bronze as a material to make valve guides because of its ideal characteristics for the application. 。 The 4 to 5 percent nickel content provides superior resistance to wear, and the approximately 80 percent copper content delivers outstanding heat conductivity. 。 Guide profiles are designed to have minimal effect on the airstream while maintaining critical cross sectional thickness in high temperature areas, promoting high performance and endurance. 。 The top portion of the guides are shortened when cam lift information is available at the time of design shows that an additional retainer to seal clearance is required. 。 C630 nickel bronze material valve guides. 。 The 4 to 5-percent nickel content provides superior wear resistance. Approximately 80% copper content for outstanding heat conductivity. Minimal effect on airstream and maintains critical cross sectional thickness in high temperature areas; promotes high 。 。 。