Running a 1999 wr400 with all the popular mods done by the PO.
The problem: Header has a couple dents in it, looks like it's been dropped on a rock. Dent 1 is roughly the size of a dime, about 1/4 inch deep, and Dent 2 is roughly the size of a quarter, 3/8 inch deep. Is this going to wreak some havoc on my power? Create hotspots on the pipe? Possibly dmg anything? Is it worth paying the 250 bucks for a new aftermarket powerbomb header?
Also, was thinking about repacking the muffler to make the noise levels a little more rider-friendly, as 2 hours on the bike gets hard on the hearing... I'm not entirely sure there is any packing in the current muffler. Will I need to re-jet?
Any insight would be appreciated... first time 4 stroke owner, first time 4 stroke maintainer.
Edited by ArcticWR400, March 18, 2010 - 09:44 AM.
Spelling is hard >.<