Kibblewhite Valve Spring Kit.
Fits:
-01-13 Yamaha YZ250F
-01-13 Yamaha WR250F
Kit Includes:
-Dual Valve Springs
-Titanium Retainers
-Steel Basewashers
-Valve Guide Seals
These valve springs are good to .380" of valve lift on the intake and exhaust. These springs also include titanium retainers for the lightest retainer possible, allowing for increase RPM and lighter spring forces. Sunk guides are required with higher lift camshafts.