EXHAUST
59
The exhaust system is a frequently overlooked
component of an engine. It is important to make sure
the muffler is in good condition and free of debris and/
or insects.
NOTE: A blocked muffler will result in poor per-
formance. If a muffler is completely blocked, the
engine may not start.
NOTE: Spark arrestors are an option that are
required on all engines used in California and
U.S. national parks.
To remove/replace the muffler:
1. Remove the engine shroud by following the pro-
cedures described in Chapter 3: Air Intake Sys-
tem.
2. Remove the muffler heat shield by:
2a. Remove the two rear heat shield screws
using a 10 mm wrench.
See Figure 3.1.
Figure 3.1
Remove these
screws
3. Remove the screw that holds the heat shield to
the cylinder head using a 10 mm wrench.
See Figure 8.2.
4. Work the heat shield off of the engine.
5. Remove the three screws that secure the
exhaust pipe shield using a 10 mm wrench.
See Figure 8.3.
Figure 8.2
Remove this
screw
Figure 8.3
Exhaust pipe
shield
Remove these
screws
CHAPTER 8: EXHAUST