Hi, I already read some topics about that but I still cannot fix my problem. The problem is: - no idle speed when engine is hot - engine stops sometimes when opening the throttle 0 - 1/4 and more slow or fast What I did: - cleaned the carburetor and all the jets - new iridium spark I moved the position of jet needle from 6 to 4 (standard). And tried to adjustment pilot screw, I turn in pilot screw until it is lightly seated, and then trying to turn out 1/2 turn and start the engine. Until 3 turns the engine has no idle. I read it should be max 2 turns out, if it is more I need to replace the pilot jet with one size bigger. When with 3+ turns out of pilot screw the engine runs on high rpms then I need rich fuel, right? Is it possible without pilot jet replacing, but with jet needle position change to make rich fuel? Maybe that because it was on position 6 from previous owner.