Question about 2003 Yamaha YZ 125
Common cause of kickstarter not engaging(I am guesing that this is your problem) is a broken spring on the kickstart mechanism,or that the kickstart idler gear cerclip has fallen off(this allows the idler gear to move forward on the shaft & thus won't allow the kickstart gear to transfer drive to the clutch hub).Remove clutch cover, put kickstart lever back on shaft spline,activate kickstart lever by hand(easier with sparkplug removed+in neautral)as kickstart lever moves down 90 degrees the gear on the kickstarter mechanism should move out to engage with gear next to it(kickstart idler gear).If the gear on the kickstarter mechanism dosn't move outward it has a broken spring on the kickstart mechanism.replace spring and all should work.(if the spring is broken you need to try find the broken piece with a magnetic pick-up tool as the broken part can cause further damage if not removed)To do this job I highly recommend you first purchase a workshop manual which will guide you through these processes.After all a manual is the most valuable tool in your tool kit.
Posted on Nov 23, 2009
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Posted on Jan 02, 2017
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