Valve, Black Diamond Stainless, Std. IN,

Yamaha®, WR/ YZ 250F, 2001-2013

Yamaha
WR / YZ 250F 2001-2013,

CENTER INTAKE Black Diamond Standard Valves Kibblewhite # 80-80075,

Head Diameter 23.00mm / 0.906 inc.
Stem Diameter 4.0mm / 0.1566 inc.
Tulip 25 degrees,
OL 78.61 / 3.095 inc.

All KPMI® Black Diamond™ Stainless steel valves are impregnated by a special German process to a depth of .002, with a surface build up of .0002. This Black Diamond™ process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on our computerized flow bench. Black Diamond™ Valves are lightweight, strong, one piece forgings with profiles that provide excellent flow characteristics.

Part No. 65-424.KW.SS (oro2u.com)

Cross reference numbers.
Kibblewhite # 80-80075, PSYCHIC XU-09519I-4, VERTEX 8400005 -2, WISECO VIT005C, 5NL-12111-30-00, 5NL-12111-00-00, 5NL- 12111-10-00, 5NL-12111-20-00
2001 WR250F - WR250FN VALVE