View Full Version : 250R Won't idle
AngusJustice
11-05-2008, 06:35 PM
My 85 honda 250R wont idle. idle and air screws make no difference when adjusted. Anyone got any ideas?
rdlsz24
11-05-2008, 06:40 PM
Possibly an air leak
Rob
AngusJustice
11-05-2008, 06:42 PM
Where would the air leak be?
AngusJustice
11-05-2008, 06:52 PM
I talked to a mechanic friend he said could be the cranks seals? anyway to test those?
Gearheadtom
11-05-2008, 09:54 PM
Try a new plug. My 200m, thoe 4-stroke, often won't idle because of a bad plug.
Where would the air leak be?
Cracks or holes in the intake boot?
ChrisD
11-05-2008, 10:57 PM
If you had an intake air leak or a base gasket leak, you would be way lean and the engine would scream at idle.
So, your idle is too low I am guessing. The 85 carb is limited so my question is this. You may have to "negotiate" an idle. I would take any excess slack out of the throttle cable. Can you adjust the screw at the top of the carb out to increase the idle? I have not used stock carbs in a long time ago so please forgive me. You probalby have the stock cable and thumb throttle, do you?
2 strokes are funny. I constantly adjust my idle from when the motor is a cold running motor to a warm motor. When the bike is cold at startup, I have to increase the idle, but when the motor is warm, I have to decrease it.
Can you give us more detail?
Daddio
11-05-2008, 11:45 PM
I think I'm feeling ill.http://forums.everything2stroke.com/images/smilies/obscene3.gif
peter250r
11-06-2008, 04:25 AM
i had the same problem on my 86 250r. my problem was that the air filter had deteriorated so much that bits of it had been sucked into the reed valve.
i got it all out and it fixed the problem.
what kind of state is your filter in?
AngusJustice
11-06-2008, 11:06 AM
air filter is in good shape and the idle adjust does nothing and im using a stock cable and thunmb control no slack in the throttle cable
FastZ28
11-06-2008, 02:38 PM
Sounds like you got a peice of debris blocking your pilot jet. Pull the pilot jet out and inspect it . You should be able to see thru it, its a very small opening. If not blast it with carb cleaner and compressed air till its clear and put it back in.
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