VALVE SPRING SET YZF400 YZF426, KIBBLEWHITE 80-80100 RACING, YAMAHA WR400/426 1998-2002

65-Part No. 65-724 (Off Road Only Ltd.) HIGH LIFT 0.380 INC.
YAMAHA YZF/WRF 400/426 1998-2002, Lightweight Racing Valve Chrome Silicon Springs, Titanium Retainers, H.T. Steel lower Collars, SEALES.
Kibblewhite # 80-80100

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