I got a 1994 yamaha timberwolf that 2 years ago i bought put carb on off a parts one had it running but not the best so i rebuilt the carb seemed to run good then i left it sit i wanted to ride it so,i took carb apart to clean it looked good had it running but wouldn't idle not a big deal then it died so i gave up on now trying to start wont do anything i checked spark looks good, has great compression and its getting gas i sprayed starter fluid in it and it still wont do anything what the heck could be wrong?