• 1987 WARRIOR (YFM350XT) - Valve
• 1988 WARRIOR (YFM350XU) - Valve
• 1989 WARRIOR (YFM350XW) - Valve
• 1990 WARRIOR (YFM350XA) - Valve
• 1991 WARRIOR (YFM350XB) - Valve
• 1991 WARRIOR (YFM350XB_M) - Valve
• 1992 WARRIOR (YFM350XD) - Valve
• 1992 WARRIOR (YFM350XD_M) - Valve
• 1993 KODIAK 4WD (YFM400FWE_) - Valve
• 1993 WARRIOR (YFM350XE) - Valve
• 1993 WARRIOR (YFM350XE_M) - Valve
• 1994 KODIAK 4WD (YFM400FWF) - Valve
• 1994 KODIAK 4WD (YFM400FWF_) - Valve
• 1994 WARRIOR (YFM350XF) - Valve
• 1994 WARRIOR (YFM350XF_M) - Valve
• 1995 YFM35FXG - Valve
• 1995 KODIAK 4WD (YFM400FWG) - Valve
• 1995 KODIAK 4WD (YFM400FWG_) - Valve
• 1995 WARRIOR (YFM350XG) - Valve
• 1995 WARRIOR (YFM350XG_M) - Valve
• 1995 WOLVERINE (YFM35FXG_M) - Valve
• 1996 KODIAK 4WD (YFM400FWH) - Valve
• 1996 KODIAK 4WD (YFM400FWH_) - Valve
• 1996 WARRIOR (YFM350XH) - Valve
• 1996 WARRIOR (YFM350XH_M) - Valve
• 1996 WOLVERINE 4WD (YFM350FXH) - Valve
• 1996 WOLVERINE 4WD (YFM350FXH_) - Valve
• 1997 KODIAK 4WD (YFM400FWJ) - Valve
• 1997 KODIAK 4WD (YFM400FWJ_) - Valve
• 1997 WARRIOR (YFM350XJ) - Valve
• 1997 WARRIOR (YFM350XJ_M) - Valve
• 1997 WOLVERIINE (YFM35FXJ_M) - Valve
• 1997 WOLVERINE (YFM35FXJ) - Valve
• 1998 KODIAK 4WD (YFM400FWK) - Valve
• 1998 WARRIOR (YFM350XK) - Valve
• 1998 WARRIOR (YFM350XKC) - Valve
• 1998 WOLVERINE (YFM35FXK) - Valve
• 1999 BIG BEAR 4WD (YFM350FWXL) - Valve
• 1999 KODIAK 4WD (YFM400FWBL) - Valve
• 1999 WARRIOR (YFM350XL) - Valve
• 1999 WARRIOR (YFM350XLC) - Valve
• 1999 WOLVERINE 4WD (YFM350FXL) - Valve
• 1999 WOLVERINE 4WD (YFM350FXLC) - Valve
• 2000 BIG BEAR 2WD (YFM400M) - Valve
• 2000 BIG BEAR 2WD (YFM400MC) - Valve
• 2000 BIG BEAR 4WD (YFM400FM) - Valve
• 2000 BIG BEAR 4WD (YFM400FMC) - Valve
• 2000 BIG BEAR BUCKMASTER (YFM400FHM) - Valve
• 2000 KODIAK 2WD (YFM400AM) - Valve
• 2000 KODIAK 2WD (YFM400AMC) - Valve
• 2000 KODIAK 4WD (YFM400FAM) - Valve
• 2000 KODIAK 4WD (YFM400FAMC) - Valve
• 2000 KODIAK 4WD REALTREE X-TRA (YFM400FAHM) - Valve
• 2000 WARRIOR (YFM350XM) - Valve
• 2000 WARRIOR (YFM350XMC) - Valve
• 2000 WOLVERINE (YFM350FXM) - Valve
• 2000 WOLVERINE (YFM350FXMC) - Valve
• 2001 YFM400FWNN - Valve
• 2001 BIG BEAR 2WD (YFM400N) - Valve
• 2001 BIG BEAR 2WD REALTREE (YFM400HN) - Valve
• 2001 BIG BEAR 4WD (YFM400FN) - Valve
• 2001 BIG BEAR 4WD REALTREE X-TRA (YFM400FHN) - Valve
• 2001 KODIAK 2WD (YFM400AN) - Valve
• 2001 KODIAK 4WD (YFM400FAN) - Valve
• 2001 KODIAK 4WD HUNTER (YFM400FAHN) - Valve
• 2001 WARRIOR (YFM350XN) - Valve
• 2001 WARRIOR (YFM350XNC) - Valve
• 2001 WOLVERINE (YFM350FXN) - Valve
• 2002 BIG BEAR 400 2WD (YFM400P) - Valve
• 2002 BIG BEAR 400 2WD REALTREE (YFM400HP) - Valve
• 2002 BIG BEAR 400 4WD (YFM400FP) - Valve
• 2002 BIG BEAR 400 4WD REAL TREE X-TRA (YFM400FHP) - Valve
• 2002 WARRIOR (YFM350XP) - Valve
• 2002 WARRIOR (YFM350XPC) - Valve
• 2002 WOLVERINE (YFM350FXP) - Valve
• 2003 BIG BEAR 400 2WD (YFM400NR) - Valve
• 2003 BIG BEAR 4WD (YFM400FWR) - Valve
• 2003 WARRIOR (YFM350XR) - Valve
• 2003 WARRIOR (YFM350XRC) - Valve
• 2003 WOLVERINE 4WD (YFM350FXR) - Valve
• 2004 BIG BEAR 400 2WD (YFM40S) - Valve
• 2004 BIG BEAR 400 4X4 (YFM40FS) - Valve
• 2004 BRUIN 350 AUTO 2WD (YFM35AS) - Valve
• 2004 BRUIN 350 AUTO 4X4 HARDWOOD (YFM35FAHS) - Valve
• 2004 BRUIN 350 AUTO 4X4 HARDWOOD (YFM35FAS) - Valve
• 2004 RAPTOR 350 (YFM350S) - Valve
• 2004 WARRIOR (YFM35XS) - Valve
• 2004 WARRIOR (YFM35XSC) - Valve
• 2004 WOLVERINE 4X4 (YFM35FXS) - Valve
• 2005 BIG BEAR 400 4WD (YFM40FT) - Valve
• 2005 BRUIN 2WD (YFM35BAT) - Valve
• 2005 BRUIN 350 4X4 (YFM35FAT) - Valve
• 2005 BRUIN 4WD HUNTER (YFM35FAHT) - Valve
• 2005 RAPTOR 350 (YFM350RT) - Valve
• 2005 RAPTOR 350 SE (YFM350RSET) - Valve
• 2005 WOLVERINE (YFM35FXT) - Valve
• 2006 BIG BEAR 400 4WD (YFM40FV) - Valve
• 2006 BRUIN 2WD (YFM35BAV) - Valve
• 2006 BRUIN 350 4WD (YFM35FAV) - Valve
• 2006 BRUIN 350 4WD HUNTER (YFM35FAHV) - Valve
• 2006 RAPTOR 350 (YFM350RV) - Valve
• 2006 RAPTOR 350 SE (YFM350RSEV) - Valve
• 2006 WOLVERINE 350 2WD (YFM35XV) - Valve
• 2007 BIG BEAR 400 4WD HUNTER-IRS (YFM40FBHW) - Valve
• 2007 BIG BEAR 400 4WD IRS (YFM40FBW) - Valve
• 2007 BIG BEAR 400 4WD IRS (YFM40FBW) - Valve
• 2007 BIG BEAR 400 IRS (YFM40FBW-B) - Valve
• 2007 BIG BEAR 400 IRS EXPLORING (YFM40FBEW) - Valve
• 2007 GRIZZLY 350 2WD (YFM35GW) - Valve
• 2007 GRIZZLY 350 4WD (YFM35FGW) - Valve
• 2007 GRIZZLY 350 IRS (YFM35FGIW) - Valve
• 2007 GRIZZLY 350 IRS (YFM35FGIW) - Valve
• 2007 GRIZZLY 350 IRS HUNTER (YFM35FGIHW) - Valve
• 2007 RAPTOR 350 (YFM35RW) - Valve
• 2007 RAPTOR 350 (YFM35RW-C) - Valve
• 2007 RAPTOR 350 SPECIAL EDITION (YFM35RSEW) - Valve
• 2007 RAPTOR 350 SPECIAL EDITION 2 (YFM35RSE2W) - Valve
• 2007 WOLVERINE 350 2WD SPORT (YFM35XW) - Valve
• 2008 BIG BEAR 400 4WD (YFM40FBXGR) - Valve
• 2008 BIG BEAR 400 4WD (YFM40FBXL) - Valve
• 2008 BIG BEAR 400 4WD (YFM40FBXR) - Valve
• 2008 BIG BEAR 400 4WD HUNTER (YFM40FBHX) - Valve
• 2008 BIG BEAR 400 4WD HUNTER (YFM40FBX-B) - Valve
• 2008 GRIZZLY 350 (YFM35GX) - Valve
• 2008 GRIZZLY 350 2WD (YFM35GXGR) - Valve
• 2008 GRIZZLY 350 2WD (YFM35GXL) - Valve
• 2008 GRIZZLY 350 2WD (YFM35GXR) - Valve
• 2008 GRIZZLY 350 4WD (YFM35FGX) - Valve
• 2008 GRIZZLY 350 4WD (YFM35FGXGR) - Valve
• 2008 GRIZZLY 350 4WD (YFM35FGXL) - Valve
• 2008 GRIZZLY 350 4WD (YFM35FGXR) - Valve
• 2008 GRIZZLY 350 4WD HUNTER (YFM35FGHX) - Valve
• 2008 GRIZZLY 350 4WD HUNTER (YFM35FGX-B) - Valve
• 2008 GRIZZLY 350 IRS 4WD (YFM35FGIX) - Valve
• 2008 GRIZZLY 350 IRS 4WD (YFM35FGIXG) - Valve
• 2008 GRIZZLY 350 IRS 4WD (YFM35FGIXL) - Valve
• 2008 GRIZZLY 350 IRS 4WD (YFM35FGIXR) - Valve
• 2008 GRIZZLY 350 IRS 4WD HUNTER (YFM35FGIHX) - Valve
• 2008 RAPTOR 350 (YFM35RX) - Valve
• 2008 RAPTOR 350 (YFM35RXGY) - Valve
• 2008 RAPTOR 350 (YFM35RXL) - Valve
• 2008 WOLVERINE 350 2WD (YFM35XX) - Valve
• 2008 WOLVERINE 350 2WD (YFM35XXGY) - Valve
• 2008 WOLVERINE 350 2WD (YFM35XXL) - Valve
• 2009 BIG BEAR 400 4WD (YFM40FBYB) - Valve
• 2009 BIG BEAR 400 4WD (YFM40FBYGR) - Valve
• 2009 BIG BEAR 400 4WD (YFM40FBYL) - Valve
• 2009 BIG BEAR 400 4WD HUNTER (YFM40FBHY) - Valve
• 2009 GRIZZLY 350 2WD (YFM35GYB) - Valve
• 2009 GRIZZLY 350 2WD (YFM35GYGR) - Valve
• 2009 GRIZZLY 350 4WD (YFM35FGYB) - Valve
• 2009 GRIZZLY 350 4WD (YFM35FGYGR) - Valve
• 2009 GRIZZLY 350 4WD (YFM35FGYL) - Valve
• 2009 GRIZZLY 350 4WD HUNTER (REALTREE AP CAMO) (YFM35FGHY) - Valve
• 2009 GRIZZLY 350 IRS 4WD (YFM35FGIYB) - Valve
• 2009 GRIZZLY 350 IRS 4WD (YFM35FGIYG) - Valve
• 2009 GRIZZLY 350 IRS 4WD (YFM35FGIYL) - Valve
• 2009 GRIZZLY 350 IRS 4WD HUNTER (YFM35FGIHY) - Valve
• 2009 RAPTOR 350 (YFM35RYL) - Valve
• 2009 RAPTOR 350 (YFM35RYW) - Valve
• 2009 WOLVERINE 350 2WD (YFM35XYL) - Valve
• 2010 BIG BEAR 400 4WD (YFM40FBZGR) - Valve
• 2010 BIG BEAR 400 4WD (YFM40FBZL) - Valve
• 2010 BIG BEAR 400 4WD HUNTER (YFM40FBHZ) - Valve
• 2010 GRIZZLY 350 2WD (YFM35GZGR) - Valve
• 2010 GRIZZLY 350 4WD (YFM35FGZGR) - Valve
• 2010 GRIZZLY 350 4WD (YFM35FGZL) - Valve
• 2010 GRIZZLY 350 4WD HUNTER (YFM35FGHZ) - Valve
• 2010 GRIZZLY 350 IRS 4WD (YFM35FGIZG) - Valve
• 2010 GRIZZLY 350 IRS 4WD (YFM35FGIZL) - Valve
• 2010 GRIZZLY 350 IRS 4WD HUNTER (YFM35FGIHZ) - Valve
• 2010 RAPTOR 350 (YFM35RZW) - Valve
• 2011 BIG BEAR 400 4WD (YFM40FBAGR) - Valve
• 2011 BIG BEAR 400 4WD (YFM40FBAL) - Valve
• 2011 BIG BEAR 400 4WD HUNTER (YFM40FBHA) - Valve
• 2011 GRIZZLY 350 2WD (YFM35GAGR) - Valve
• 2011 GRIZZLY 350 2WD (YFM35GAL) - Valve
• 2011 GRIZZLY 350 4WD (YFM35FGAGR) - Valve
• 2011 GRIZZLY 350 4WD (YFM35FGAL) - Valve
• 2011 GRIZZLY 350 4WD HUNTER (YFM35FGHA) - Valve
• 2011 GRIZZLY 350 IRS 4WD (YFM35FGIAG) - Valve
• 2011 GRIZZLY 350 IRS 4WD (YFM35FGIAL) - Valve
• 2011 GRIZZLY 350 IRS 4WD HUNTER (YFM35FGIHA) - Valve
• 2011 RAPTOR 350 (YFM35RAL) - Valve
• 2012 BIG BEAR 400 4WD (YFM40FBBGR) - Valve
• 2012 BIG BEAR 400 4WD (YFM40FBBL) - Valve
• 2012 BIG BEAR 4WD HUNTER (YFM40FBHB) - Valve
• 2012 GRIZZLY 350 4WD (YFM35FGBGR) - Valve
• 2012 GRIZZLY 350 4WD (YFM35FGBL) - Valve
• 2012 GRIZZLY 350 4WD HUNTER (YFM35FGHB) - Valve
• 2012 RAPTOR 350 (YFM35RBW) - Valve
• 2013 GRIZZLY 350 4WD (YFM35FGDGR) Pastel Deep Green - Valve
• 2013 GRIZZLY 350 4WD (YFM35FGDL) Deep Purplish Blue Solid N - Valve
• 2013 GRIZZLY 350 4WD (YFM35FGDR) Romantique Rouge - Valve
• 2013 GRIZZLY 350 4WD HUNTER (YFM35FGHD) Yamaha Black (Camo) - Valve
• 2013 RAPTOR 350 (YFM35RDW) - Valve
• 2014 GRIZZLY 350 (YFM350DEG) - Valve
• 2014 GRIZZLY 350 (YFM350DEL) - Valve
• 2014 GRIZZLY 350 (YFM350DER) - Valve
• 2014 GRIZZLY 350 HUNTING (YFM350DHEH) - Valve

. This listing is for 1 intake & 1 Exhaust valve as shown.  Thanks