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McCulloch 32cc Trimmer
4.12. Install the muffler using a new gasket.
See Figure 4.12.
exhaust gasket
Figure 4.12
4.13. Install the engine and air filter covers, and con-
nect the high tension lead to the spark plug.
4.14. Test run the unit before returning it to service.
NOTE: The engine can be test-run briefly with
the muffler removed. Hearing protection is
strongly suggested. Extended running (30 sec-
onds or more) is not recommended without the
engine cover and muffler in place.
5.
FUEL SYSTEM
Carburetor repair is beyond the scope of this manual,
but service information is available from Walbro and
Zama, the manufacturers whose carburetors are used
on McCulloch products.
5.1.
The fuel filler cap contains a polymer "stone"
tank vent. If it becomes blocked, the tank may
pressurize when heat-soaked, flooding the
engine.
5.2.
The opposite situation may occur if the engine is
run with a blocked tank vent. Air will be unable
to enter the tank to replace the fuel that is con-
sumed by the engine. This will create a vacuum,
and fuel starvation will occur. See Figure 5.2.
Wet-bulb
primer
5.3.
The air filter cover is easily removed using aT-25
driver. See Figure 5.3.
14
Fuel cap vent
Figure 5.2
Figure 5.3
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