i had the head tested it was a little warped,he shaved a little off but,every thing else was good. talking about high idle no load.my stop bolt looks like its been turn out some.my manual says it should have a wire lock to prevent from moving,but i dont have one but iam reaching 2800 rpm. do you think iam over fueling thats causing raw fuel from 2400 to 2800 i was thinking the linkage is set up wrong.