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unrivaled durability
Nitirte coated piston rings
Stage 1 replacement camshaft
OEM Polaris Crankcases
These high-performance valve stem seals from KPMI are engineered to optimize your Honda XR100's power and efficiency
Big Bear 350 YFM350 YFM 350 Kibblewhite Racing Spring Kit Valve Stem Seals 87-99 3P-426 unrivaled durabilityRacing Spring Kit, Titanium, 0. 475" Lift, Yamaha, YFM 350 450, 1987 2021 The Best On The Market! Fits: Big Bear 350 1987 1999 Grizzly 350 2007 2014 Raptor 350 2004 2013 Warrior 350 1987 2004 Wolverine 350 1995 2009 Big Bear 400 2000 2012 Kodiak 400 1987 2006 Kodiak450 2018 2021 Kit Includes: Titanium Retainers (2) Chrome Silicon Spring (2) H. T. Steel Base Washers (2) H. T. Steel Keepers (2) Valve Stem Seals (2) Replaces Yamaha OEM Part # 1J7 12119
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