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View Full Version : Stock 250ex running very rich?



Chris07
05-02-2004, 04:58 PM
I have a 03 250ex with about 20 hours on the clock. The other day I pulled the plug out and it was just gross. It was all black and it obviously looked like it was running rich. From low RPMs/idle I notice some times if I got full throttle that I'll have a slight hesitation.

I don't have a service manual on the bike but I was wondering what would be the best way to lean out the mixer a little. Raise the needle? Or is there a main adjustment on the outside of the carb somewhere I could adjust slightly?

Thanks for the help.