Join Date: Mar 2013
Location: hollywood, los angeles
bike won't idle below 3k rpms
i bought a 07 ex250 with 15k miles and the bike idles at 3k+ rpms.
i turned the idle screw out and the bike will go from 3K to dying when i turn the screw an 1/8th of a turn.
i have cleaned out the carbs and reinstalled them and checked for air leaks by spraying starting fluid. no leaks. all carb settings were set to stock.
i installed a spare set of ex250 carbs and the problem is still there so the problem isn't in the carbs.
i am at a loss for where the problem could be as the bike runs fine but it refuses to let the idle drop. i tried removing the throttle and choke cables from the carbs but the problem persists.
i was considering swapping out the cdi for a known working unit but i doubt thats the problem. any ideas/suggestions/comments are appreciated.