© STIHL Inc., Virginia Beach, VA 2013 US/STR
confidential
17. Cooling System
Verify that the cooling fins are in good condition and that the
air path to the flywheel and through the engine from the
flywheel is not blocked or restricted in any way
Verify that the flywheel fins are in good condition
© STIHL Inc., Virginia Beach, VA 2013 US/STR
confidential
18. Magneto Air Gap
Line up the pole shoes in the
flywheel with the magneto
Observe the gap between the
ignition module and the
flywheel
The specification is .008”
It is not absolutely
necessary to measure this
with a gauge, just be sure
the flywheel is not rubbing
on the module and that the
gap does not look
excessively wide
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