Chainsaw Repair

ok got this thing running and revving freely now I leaned her out a bit more now another problem showing up chain coming loose feels like front stud is stripped as I cant tighten it right down like I can do to the back stud have yet to see if the case is ****. Anyone got a redneck fix for the stud have been searching here but yet to find an answer will keep searching I really like this saw so will be looking for a couple more for firewood cutting good weight and cut well.