On my 2002 400EX, went to do the first oil change and i drained the pan, and then i drained the block and i went to go and take the oil filter cover off. I took out the bolt towards the front of the engine and it came off with no problem and then i went to take off the one toward the back of the engine and the head striped. The bolt never broke lose. I call the dealer were i bought it from and they said that the bolt should have broke before it striped. They made me take it back to them and they are getting a Honda rep. to come and look at it. Has this happen to anybody else?