Exhaust System; Removing Muffler; Inspecting Muffler; Installing Muffler - Arctic Cat 450 XC 2011 Service Manual

CLEANING AND INSPECTING
 NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
1. Clean all fender components with warm soap and
water.
2. Inspect fenders for cracks or other damage.
3. Inspect for any missing decals.
INSTALLING
1. Making sure the shift spring is in place and the shift
lever is properly positioned, place the front body
fender panel onto the ATV.
2. Loosely install the four cap screws and two finder
bolts; then install and lock the two reinstallable rivets.
120
3. Place the gas tank cover into position and secure
with the existing hardware; then install the two cap
screws securing the rear of the panel to the frame.
Tighten all cap screws and fasteners securely.
4. Install the side panels and secure with the four rein-
stallable rivets; then install the seat.

Exhaust System

REMOVING MUFFLER

KC469A
1. Remove the two exhaust springs at the muffler/
exhaust pipe juncture.
KC467A
2. Slide the muffler rearward to clear the mounting lugs
and remove the muffler. Account for a grafoil seal.

INSPECTING MUFFLER

 NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
1. Inspect muffler externally for cracks, holes, and
dents.
2. Inspect the muffler internally by shaking the muffler
KC470A back and forth and listening for rattles or loose debris
inside the muffler.
 NOTE: For additional details on cleaning the muf-
fler/spark arrester, see Periodic Maintenance.

INSTALLING MUFFLER

1. Using a new grafoil seal, place the muffler into posi-
tion engaging the mounting lugs into the grommets;
then slide the muffler forward.
2. Install the two exhaust springs.

Rear Body Panel

REMOVING
1. Remove the seat; then remove four cap screws secur-
ing the rear body panel/fender to the frame and the cap
screws securing the rear fenders to the fender supports.
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