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dylanr

Weird idle, hiiigh,loooow

6 posts in this topic

2000 xr650r uncorked, i get the idle set with the nob, then after it warms up, it idles about 500 rpms higher, if i snap the throttle, it idles back down, this makes it impossible to set the idle right. i took the carb apart, and it was really clean inside, i blew out the jets, and tried to reset the pilot screw, but that was really hard with such a wacky idle. anyone have any ideas, air leak maybe?

thanks

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When i start my bike on these cold fall mornings at 20-40 degree's outside i have to hold the throttle open slightly to keep the idle up, but it still idle's at 1000-1200 according to my vapor. When its warm its up around 1500-1600, not saying that i have a problem with it but whats the fix.

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Could be an air leak, but what you describe sounds more like sticky cables and/or throttle tube. The carb slide can wear too, but it's usually only an issue on real high mileage bikes.

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the cables on the carb arent tight like they are sticking, they have a little slack

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