New owner with no idle : ( - Kawasaki Ninja 250R Forum
 
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post #1 of 2 (permalink) Old 04-23-2013, 08:04 AM Thread Starter
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Join Date: Apr 2013
Location: Mesa, AZ
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New owner with no idle : (

Hello all. I have read many posts re: no idle conditions and high idles at 3-4k, and many replies as to what "may" be the problems. But nobody seems to post any results. I have had carbs off twice, clean the living crap out of them, tried diff idle jet settings...... still no results. I can choke it down to a 1or 2k idle by putting my fingers in the airbox intake and the darned thing will stay there, sometimes for a while, sometimes for as long as I want, until I touch the throttle, then back to 3-4k. The dealers and others say a lean condition exists (which I can NOT find), but why does it stay down? then go back up. never comes down on its own. Signed, Baffled.
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post #2 of 2 (permalink) Old 04-23-2013, 08:13 AM
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Join Date: Jul 2011
Location: NC
Posts: 478
What are you working with? Old used Ninja? New used Ninja?

Any carb/exhaust modifications?
Last valve adjustment?
Have you checked for leaks?
What's you idle rpm speed?

Some good info to read and learn from;

How Constant Velocity Carburetors Work
http://www.motorcycleproject.com/mot...bs_work_v3.swf

Motorcycle Carburetor Theory 101
http://www.motorcyclecarbs.com/carbs101.pdf
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