REPACK YOUR MUFFLER
Two- & four-stroke sound advice
By the staff of Dirt Wheels
Allow the exhaust to cool if it has been recently running.
Once cool, you can remove the spark arrestor or quiet-core
insert installed through the rear end cap of the muffler.
Do not remove the rear end cap. The muffler is disassembled
from the front towards the mid-pipe end connected to the
header. Remove the Allen bolts from the front of the muffler
and any band straps held in place by the Allen bolts or rivets.
Save all the bolts and other hardware, as you will need them
Using care not to damage or distort the shape of the metal, grasp the front end cap (mid-pipe side) with your hand and begin
working it out of the muffler canister. You may need to lightly tap the muffler mount with a rubber mallet for an easier separation. Slowly pull the end cap and core all the way out of the can, exposing the remains of the old packing material.
Unwrap the old packing from the core and discard. To ensure there are no clogs in the perforations, clean the core with a wire
brush to remove all of the old material.