Exhaust System Repair; Small Dents (Exhaust System) - Arctic Cat Cougar Service Manual

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WARNING
When performing Step 2b, do not start
the drill until the cable is inserted into
the pipe. At no time should the drill be
running when the cable is free of the
pipe. The whipping action of the cable
could cause serious injury. Wear heavy
shop gloves and a face shield when using
this equipment.
a. Insert a section of discarded speedometer
cable in an electric drill chuck (Figure 14).
Fray the loose end of the cable and insert
the cable into the pipe. Operate the drill
while moving the cable back and forth in-
side the pipe. Take your time and do a
thorough job.
WARNING
Make sure all foreign objects are re-
moved from the pipe when finished
cleaning.
CHAPTER EIGHT
b. Find several large ball bearings or nuts that
will just fit into the expansion chamber or
muffler. Count the bearings or nuts as they
are inserted, then shake the pipe violently
to break loose carbon that is inside.
3. Shake the large pieces out into a trash con-
tainer.
EXHAUST SYSTEM REPAIR
A dent in the expansion chamber will change
the system's flow characteristics and may de-
grade performance. Minor damage can be easily
repaired if you have welding equipment, some
simple body tools and a slide hammer.
Small Dents
1. Drill a small hole in the center of the dent.
Screw the end of the slide hammer into the hole.