VALVE INTAKE YZ250F 14-18, KIBBLEWHITE 80-80912

This Black Diamond™ Stainless Steel Intake Valve is built for Yamaha® YZ™ 250F (2014–2018), WR™ 250F, and YZ™ 250FX (2014–2019) models. Manufactured from a one-piece forging, it features a black nitrided coating for enhanced surface hardness, reduced friction, and superior resistance to wear and corrosion. Developed with Finite Element Analysis and tested on flow benches, this valve ensures efficient intake performance. Installation requires KPMI® Spring Kit #80-81400.

Features

• Manufactured from Black Diamond™ Stainless Steel

• Black nitrided coating for improved wear resistance and reduced friction

• One-piece forging for strength and reliability

• Designed using Finite Element Analysis (FEA)

• Flow-optimised profiles tested on computerised flow bench

• Requires use of KPMI® Spring Kit #80-81400

Specifications

• Head Diameter: 31.00mm / 1.220″

• Stem Diameter: 5.0mm / 0.1962″

• Tulip Angle: 18 degrees

• Overall Length (OL): 82.93mm / 3.265″

• Standard size

Cross-Reference OEM Part Numbers

• Kibblewhite Part No. 80-80912

Vehicle Fitments

• Yamaha YZ 250F 2014–2018

• Yamaha WR 250F 2014–2019

• Yamaha YZ 250FX 2014–2019