I bought a pretty clean 04. It ran but wouldn't idle when I bought it. I pulled off the carb and cleaned it out-- it was pretty clean. Now, it won't start.. I screwed around with the idle speed djustment screw and wonder if that is my problem? I attempted to adjust the idle UP, hoping to just get it running. I also re-adjusted the idle-air (2 1/4 turns). The previous owner put an aftermaket adjuster screw in. Any suggestions?? I have read all of the comments about valve adjustment and plan to do that. But I want to get it at least running again first. BTW- I've been kicking it over as suggested here(in neutral). I've also tried pop starting it in 2nd Thanks.