Question about 2004 Yamaha YZ 125

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My bike has comprassion and it fire's why won't it turn over

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  • troyhayward May 11, 2010

    Have you had it started since you have had it? Or have you done any work to the head?



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The major reason for this problem is generally it is in need of a tune up. It sounds as if your timing might be a little out. Go over it a bit at a time, clean battery terminals, charged battery, clean and correctly set plugs, and then check the timing. Without it going this is going to be difficult, but you can have a look at the timing marks and make sure they line up. You really need a manual, there are none for your bike at the freebie site, but if you Google it and hunt around, you should find one, I have for every model I have searched for. You could try to start it by running it down a hill and if that fails, and your search fails, then it is time for the professional.

Posted on Jan 31, 2010


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