VALVE SPRING SET YZF450 03-09, KIBBLEWHITE 80-80206 RACING, WRF450 03-11 YAMAHA

Part No. 65-723 (Off Road Only Ltd.) HIGH LIFT 0.380 INC.
YAMAHA YZF450 03-09, WRF450 03-11, Lightweight Racing Valve Chrome Silicon Springs, Titanium Retainers, H.T. Steel lower Collars, SEALS.
Kibblewhite # 80-80206
Description Intake - 0.380 Valve Lift OK

40# Seat Pressure / 86 lb. at .380 lift
Exhaust - 0.380 Valve Lift OK 40# Seat Pressure / 86 lb. at .380 lift
KPMI takes a scientific -System- approach when designing our Valve spring kits. Each component is designed to work with the others as part of the complete system. KPMI?s engineers use our proprietary design and simulation softwares, and