Question about 2003 Yamaha YZ 125
As for the noise in the engine, could be alot of things. If your plug is very oily, then it's probably fouled. That would make it difficult to start & possibly run rough. Pretty common with 2 strokes. Sounds like your mixture on your fuel has too much oil in it when you mix it. Make sure you're mixing your fuel properly then I would check on rebuilding and adjusting your carb if your fuel mix is right. Hope this helps
Posted on Sep 15, 2010
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Posted on Jan 02, 2017
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