Kibblewhite Valve Spring Kit
Fit:
-19+ Yamaha YZ250F
Kit includes: Dual Springs, Titanium Retainers, and Steel Base Washers
These valve springs are good to .420" of valve lift on the intake valves and .400" valve lift on the exhaust valves. These springs also include titanium retainers for the lightest retainer possible, allowing for increase RPM and lighter spring forces. Sunk or Shortened Guides may be required to clear higher than stock valve lift.
*The Intake springs for this kit include a progressively wound Outer Spring, which should be installed with the tightly wound end seated on the H. T. Steel Basewashers.
