ATV Accessories

Premium Quality Replacement Part
Exhaust Valve Kit for Yamaha 1UY-12121-01-00 1UY-12113-01-00 1J7-12119-01-00
For Yamaha Models:
Bruin 350 2×4 4×4 2004-2006
Big Bear 350 YFM350FW 4×4 1999
Big Bear 400 YFM400 2×4 4×4 2000-2012
Grizzly 350 2×4 4×4 2007-2014
Kodiak 400 2×4 4×4 1993-2002
Raptor 350 2004-2013
Warrior 350 YFM350X 1987-2004
Wolverine 350 2×4 4×4 1995-2009
Order Includes:
1 x Exhaust Valve: 1UY-12121-01-00 1UY-12121-00-00
Exhaust Valve Length: 1.33″ | 34.0 mm
Exhaust Valve Diameter: 3.93″ | 100.0 mm
1 x Inner Valve Spring: 1UY-12113-01-00 22U-12113-00-00
Width: 0.84″ | 21.4 mm
Height: 1.55″ | 39.6 mm
Thickness: 0.11″ | 2.9 mm
1 x Outer Valve Spring: 1UY-12114-01-00
Width: 1.22″ | 31.2 mm
Height: 1.71″ | 43.5 mm
Thickness: 0.16″ | 4.25 mm
1 x Outer Valve Spring: 1J7-12119-01-00 M01-12129-00-00
Length: 0.47″ | 12.0 mm
Width: 0.35″ | 9.0 mm
Inner Diameter: 0.18″ | 4.7 mm
Outer Diameter: 0.37″ | 9.4 mm
2 x Valve Stem Seal: 1J7-12118-00-00
Width: 0.16 ” | 4.2 mm
Length: 0.37 ” | 9.5 mm
Height: 0.27 ” | 7.0 mm
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