Originally Posted by mini14
be sure the gas caps are not on too tight they doo need to breath. while its running open the cap on the side your using, if it smooths out u might be puttting cap on too tight or may need a newone. fuel pump sucks fuel from tank and needs venting from the cap to allow for air.
Are you sure this is good info?
I have never heard of a gas cap that had to be loose when running. I have never heard of a cap that wasn't vented.