ATHENA offers you these replacement exhaust valves for your ATHENA P400485100029 BIG BORE 144cc or also called 150cc kit mounted on your YAMAHA YZ 125. This valve kit is delivered by pair as on the picture. So it is complete and ready to be installed on your cylinder.
Fits on:
YAMAHA YZ 125 1997
YAMAHA YZ 125 1998
YAMAHA YZ 125 1999
YAMAHA YZ 125 2000
YAMAHA YZ 125 2001
YAMAHA YZ 125 2002
YAMAHA YZ 125 2003
YAMAHA YZ 125 2004
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