Author Topic: Lt250r 1991 carb issue  (Read 520 times)

Offline Rmtavares

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Lt250r 1991 carb issue
« on: March 09, 2023, 09:17:56 pm »
Hello all I have a 1991 lt250r with full rebuild top and bottom . Question is My idle screw does nothing on keihin carb !  Iím running a pwk36 as stated by the seller.
What may be the cause of this ? too rich right ? Only way by keeping it idling is by adjusting the throttle cable by the handle bars !?
checked the reeds they are good Iím running an fmf pipe front to back !? She has a 150 main and a 48 pilot

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Offline ThrustWasher81

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Re: Lt250r 1991 carb issue
« Reply #1 on: March 11, 2023, 09:11:45 pm »
Most likely way too big on the pilot. I would back the cable off and set the idle screw about half way. Lean the pilot till it idles good and clean.

Also make sure float height is set correctly and the needle and seat are working, shutting off fuel.


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