VALVE EXHAUST YZ250F 14-18, KIBBLEWHITE 80-80916
VALVE EXHAUST YZ250F 14-18, KIBBLEWHITE 80-80916
This Black Diamond™ Stainless Steel Exhaust Valve is designed for Yamaha® YZ™ 250F (2014–2018), WR™ 250F, and YZ™ 250FX (2014–2019) models. Precision engineered from a one-piece forging, it features a black nitrided surface treatment for superior wear resistance and reduced friction. Each valve undergoes advanced design and testing processes to ensure consistent flow performance and durability. Installation requires the use of KPMI® Spring Kit #80-81400.
Features
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Manufactured from Black Diamond™ Stainless Steel
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Black nitrided coating for enhanced wear and corrosion resistance
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One-piece forging for strength and longevity
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Designed using Finite Element Analysis (FEA)
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Flow-tested profiles for optimised exhaust efficiency
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Requires use of KPMI® Spring Kit #80-81400
Specifications
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Head Diameter: 25.00mm / 0.984"
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Stem Diameter: 4.5mm / 0.1760"
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Tulip Angle: 30 degrees
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Overall Length (OL): 82.30mm / 3.240"
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Standard size.
Vehicle Fitments
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Yamaha YZ 250F 2014–2018
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Yamaha WR 250F 2014–2019
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Yamaha YZ 250FX 2014–2019