Garland BULL 1482 NRQG Manuel D'instructions page 54

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or one in poor condition. Clean and check the spark
plug regularly.
Check that the electrode gap is correct (0.6 - 0.7
mm).
8.2.4.CLEANING THE CYLINDER FINS
The cylinder fins are responsible for the cooling of the
engine due to its contact with the air. These fins must
be clean and without any material including those that
limit the flow of air.
A few dirty fins will make the motor to overheat and
can be dangerous. Check the condition of the cylinder
fins regularly.
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