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WISECO offers this exhaust valve for YAMAHA WRF 250, YZF 250 and GAS GAS ECF 250, ECF 300 2001-2015. A four-stroke engine breathes through its valves. The exhaust valves open to let the burnt gases out to the pipe, then close again.
The material is shown in the product name.
Wiseco has forged its pistons in Mentor (Ohio, USA) since 1941 and controls the whole process, from aluminium bar to the friction-reducing ArmorGlide skirt coating. Its pistons are developed with Team Honda HRC in Supercross (450 class since 2018).
Hard hot starting, valve clearance that keeps closing up or a noisy timing chain: the valve train is wearing.
Check the exact model and year of your bike in the list below before ordering.
Fits:
GAS GAS ECF 250 2015
GAS GAS ECF 250 2014
GAS GAS ECF 250 2013
GAS GAS ECF 250 2012
GAS GAS ECF 250 2011
GAS GAS ECF 250 2010
GAS GAS ECF 300 2015
GAS GAS ECF 300 2014
GAS GAS ECF 300 2013
GAS GAS ECF 300 2012
GAS GAS ECF 300 2011
GAS GAS ECF 300 2010
YAMAHA WRF 250 2013
YAMAHA WRF 250 2012
YAMAHA WRF 250 2011
YAMAHA WRF 250 2010
YAMAHA WRF 250 2009
YAMAHA WRF 250 2008
YAMAHA WRF 250 2007
YAMAHA WRF 250 2006
YAMAHA WRF 250 2005
YAMAHA WRF 250 2004
YAMAHA WRF 250 2003
YAMAHA WRF 250 2002
YAMAHA WRF 250 2001
YAMAHA YZF 250 2013
YAMAHA YZF 250 2012
YAMAHA YZF 250 2011
YAMAHA YZF 250 2010
YAMAHA YZF 250 2009
YAMAHA YZF 250 2008
YAMAHA YZF 250 2007
YAMAHA YZF 250 2006
YAMAHA YZF 250 2005
YAMAHA YZF 250 2004
YAMAHA YZF 250 2003
YAMAHA YZF 250 2002
YAMAHA YZF 250 2001
Click on your bike to see all compatible parts.
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