hi again!
new problem.
I have a kx125, 1989... and my idle is all over the place. Ive tried everything i could think of.
I cleaned my carb, i adjusted the idle and pilot screw, i changed my fuel ratio, i checked my air filter (which i am going to replace for the hell of it)
and its still erractic.

any ideas?

i tried to adjust my throttle cable too, and it made no difference. but here is what i noticed. when im ideling, i would twist the throttle to rev up the bike. going up it sounds normal, but as it goes down, it goes waaaaaaaay down, like its going to stall. this cant be normal.

please help!

 

if you have cleaned the carbs correctly and set the idle correctly then it sounds like it's something internal on the engine.