Well new here just got my first quad, 02 blaster and I can't figure out why it won't idle. I had a new top end and clutch put in after I bought it and it idled fine when I first got it back from the shop. After the first ride it wouldn't idle and I found out the idle screw on the tors was stripped. So I installed the bypass kit with the new idle screw, still will not idle. The screw picks the slide up just like it should, but it will die if I don't keep pressure on the throttle. Took carb apart and cleaned twice. Runs great through the whole rpm range. Running premix 32:1, good plug, all stock except for bored .020 over and FMF silencer. Any ideas what could cause this?