I am the 2nd owner of a 1995 Polaris 300 4x4 that's in great shape, only 1500 miles. Problem is it just will not idle. Its either so high that I cant put it in gear without grinding or so low that I have to stay on the throttle to keep it running. I rebuilt the carb and no change. Jets are factory spec and runs best with air screw out 1 1/2 turns. I am suspicious of the 3 small vacuum lines and the correct routing. Can anyone tell me or send a picture of how they route? I am going to order a new rubber intake boot too, to see if that helps. Any advice please? I know 2 strokes can be finicky but hey, my stupid weed whacker is a 2 stroke and that will idle all day.