250-500cc New Euro Version 2010 Wr300 ........wont Idle

Just bought a new euro version with all the street goodies and Im living at 3000 foot elevation, runs pretty good, might need some jetting but it wont stay on idle at all, dies and wont even idle for a minute when u come to a stop unless u keep the revs up on the throttle or it stalls, seems to run fine other than that

Any ideas

Bruce

Turn the idle up.

Probably needs jetting as most incuding my 2010 wr300 were far too rich, then adjust idle screw accordingly.

Doe's it stall in gear, if so you have clutch drag. Adjust the clutch and you may solve the problem. I had this issue

tried that idle screw doesnt respond.......probably needs a new pilot jet eh?

If it's only tickover and the idle screw isn't making any difference more likely your airscrew needs adjustment, usually around 1.5 - 2.5 turns out. Make certain that the idle screw is turned in far enough to be in contact with the slide and is infact raising it. Look in "jetting chat' this will tell you pecisely how to jet and adjust your carb.

The idle screw on those carbs almost needs to be turned all the way in to get any difference in idle.

Agreed. I have mine about a quarter of the way inside the jamb nut.

Throw the mikuni in the trash and order a PWK. I could never get mine to idle