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Bike rebuild, yz250f(02) Carb?

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Hey,

I just rebuild this 2002 yz250f. Once completed I tryed starting it, the bike won't start with choke on. When I pull the red(hot start) button, it starts for approx 1 sec. It will not keep running. I'm wondering if it sounds like it is not getting enough air. I changed the air filter. Now I'm thinking it could be a carb issue.

Half the carb is rebuild. Would it be possible it could a be leak somewheres? Have not yet done a compression test, the compression seems ok, but I may do it by tomorrow just incase.

Any suggestions?

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  • timming seems good, I'm new to the jetting, i've read some other post, I'm sure you going to want to know numbers... I don't know them. i just replaced the old ones with new ones and screw them in according to the manual.

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