Spark Arrester Cleaning - Yamaha YXR660FAS Owner's Manual

1. V-belt case drain plug
EBU13580

Spark arrester cleaning

Be sure the exhaust pipe and muffler are cool
before cleaning the spark arrester.
1. Remove the bolts.
2. Remove the tailpipe by pulling it out of
the muffler.
3. Tap the tailpipe lightly, and then use a
wire brush to remove any carbon depos-
its from the spark arrester portion of the
tailpipe.
4. Insert the tailpipe into the muffler and
align the bolt holes.
5. Install and tighten the bolts.
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