McCulloch 250 - SPARK PLUG MAINTENANCE

o
FILTER
ELEMENT
5. After the gasoline or solvent has evaporated from the element,
replace it on the carburetor enclosure. Make Sure the cutouts go
toward the front and back of the chain saw. Replace the air filter
cover and tighten the cover knob.
ea~
Do not operate the engine without the air filter ele-
ment in place because the dust and dirt in the air
will be sucked into the engine and can cause rapid
wear of the piston rings and cylinder wall. The only
time the engine should be run without the filter
element is during adjustment of the carburetor and
then only for as short a time as possible.
To save time, carry an extra filter with you and change elements
mid-way through the working day. You can clean the filters at
night without any loss of working time.
SPARK PLUG
Your chain saw engine was equipped with a 14 mm., 3/ 8 in. reach
spark plug (Champion J8J, AC M45, or Autolite A7X) at the factory.
This spark plug is suitable for all average cutting conditions. But
during extremely hot or cold weather, a plug of a different heat
range may be more efficient. Check with your McCulloch Dealer
for the plug of the correct heat range for your area and climate.
The spark plug should be cleaned and have its air gap readjusted
regularly.
1. Carefully pull the spark plug cover away from the engine and
disconnect the spark plug connector from the spark plug (figure 7).
IJ
SPARK
PLUG
COVER
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