Valve, White Diamond® Stainless, Std. EX, Yamaha®, WR™/YZ™ 400/426, 1998-2002

Yamaha YZF / WRF 400 / 426 1998-2002,
Kibblewhite # 80-8057H, INTAKE Black Diamond Valve.

Head Diameter 28.00mm / 1.102 inc.
Stem Diameter 5.00mm / 0.1955 inc.
Tulip 25 degrees,
OL 81.85mm / 3.220 inc.
Standard

We fully CNC machine our White Diamond® Valves from a one-piece forging of either EV8 Stainless Steel or Inconel-751. These materials have proven heat and corrosion resistance properties. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Strict attention is paid to the surface preparation of the valves, and the purity of the chrome is closely monitored. A 360 degree anode is used to produce the highest possible grade of hard chrome finish. White Diamond® Valves are light, strong, one piece forgings with profiles that provide excellent flow characteristics

NOTE: Kibblewhite advise to use Kibblewhite valve spring Kit?s with Kibblewhite valves. Use Part no 65-724

Part No. 65-496.KW.SS (Off Road Only Ltd.)