i am looking at buying a blaster. one that i looked at has a factory limited pipe, umi steering, and a girdled head. the problem is the head is missing two bolts. its not missing the girdle bolts, just the bolts the connect to the top of the cylinder. he said he bought it that way and it always ran fine. he has owned it 8 years. i dont know if they are stripped or not. he is asking $1,500 firm. is it safe to run it with two head bolts missing?