Question about 2004 Yamaha YZ 125

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I have a 1992 yz125 im getting good spark and fuel but wont fire what can i do

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Your spark should be a fat blue spark. Do a compression check, as it should get at least 100 psi or more, and do it with the throttle wide open. Make sure the air filter is clean!

Posted on Sep 13, 2009

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