This standard exhaust valve guide is made from C674 manganese bronze and is designed for Yamaha WR250F and YZ250F models from 2001 to 2013. Developed for price-conscious engine builders, it offers ease of machining while maintaining precise KPMI® tolerances. With a standard outside diameter of 0.3958″, it is suitable for exhaust valve use in high-performance applications.
Features
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Made from C674 manganese bronze
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Designed for exhaust valve applications
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Standard guide diameter: 0.3958″
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Easily reamed and honed using basic tools
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Maintains precise KPMI® manufacturing tolerances
Specifications
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A: 0.405″ (10.29 mm)
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B: 0.430″ (10.93 mm)
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C: 0.590″ (14.99 mm)
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D: 0.790″ (20.08 mm)
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E: 0.440″ (11.18 mm)
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F: 0.1760″ (4.48 mm)
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G: 0.3958″ (10.06 mm)
Cross-Reference OEM Part Numbers
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Part No. 65-936+000
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Kibblewhite #80-80090
Vehicle Fitments
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Yamaha WR250F 2001–2013
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Yamaha YZ250F 2001–2013
