I've noticed the head pipe on my 06 yz450f seems to be miss-shaped. The first thing I noticed was the bend backwards after the head and mounting bolts, the pipe looks flatter as in being parallel with the ground than the other parts of the pipe. Secondly, right before the header attached to the tail pipe, the pipe is touching the head/cylinder right where the gasket is. Lastly, the header pipe does not fully slide in to the muffler.
Sounds like a messed up header right?
Lemme know if some of these symptoms are normal or they are irregular, and if you have had experienced these before.
Edited by IamRooster151, May 18, 2015 - 01:18 PM.