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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250F Won't Start the conventional way
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[QUOTE="JasonJ, post: 115480, member: 23758"] Hmm, did you turn the pilot screw out 4 turns or the pilot air screw? You have to open the bowl to turn the pilot screw. 4 turns out sounds like alot. You may want to try going in with it from the stock setting and see if that helps. You shold be opening the carb bowl and turning the pilot screw and not the air screw outside the bowl. My bike seems to like the choke on for any not yet warmed up start. The tan plug sounds fine, every one I know that has these bikes says the plug looks tan, so dose mine. Idel fule is all the pilot jet and like Wrooster said, moving the needle really dose not help you durring start or idel. Be carefull with the push starts, 98 YZ 400s had week clutch baskets and that was the A #1 way to explode them. Also, like Wrooster said, dont tuch that throttle or youll inject extra fuel into the thing. The 250 F is kinda like a 125 in that the smaller the moter is the more slight fule settings affect them more. Bigger moters seem to be less tempramental to minor fule problems at start up. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250F Won't Start the conventional way
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