Exhaust
77
Muffler
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 performance. If a muffler is completely blocked the engine may not
start.
To remove/replace the muffler
1. Unplug the spark plug.
2. If the engine does not have an Autochoke Tempera-
ture Compensator, skip to step 7.
3. Drain the fuel out of the fuel tank into an approved
container.
4. Disconnect the fuel line from the tank.
5. Remove the recoil starter by following the procedures
described in Chapter 6: Starters
6. Lift the blower housing off of the engine.
7. Remove the two muffler nuts. See Figure 8.1.
8. Slide the muffler cover off of the engine.
9. Disconnect the Autochoke Temperature Compensa-
tor, if equipped, using a 10 mm wrench.
Figure 8.2
Temperature compensator
CHAPTER 8: EXHAUST
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