Cleaned the carb / checked the air filter (clean) / changed the spark plug / drained the gas / checked the compression (it was good)/ It will start....but it wont idle. Revs up real high then dies or so high that I cut it off. Messed with the adjustments on the side of the carb and the throttle cable but still cant get it to idle. Is there any specs listed somewhere about the adj screws on the side of the carb or is there any certain way to make sure they are adjusted correctly. Thanks!