© STIHL Inc., Virginia Beach, VA 2013 US/STR
confidential
27. Crankshaft and Bearing Condition
See if the flywheel moves in and out or up and down
There should not be any loose play in the crankshaft
bearings
© STIHL Inc., Virginia Beach, VA 2013 US/STR
confidential
28. Carburetor
Pressure test the carb no higher than 10 PSI and it should hold
steady
Open and close the butterfly and it should open smoothly
Verify that the throttle shaft does not have any excessive side
to side play
Inspect the carb for any physical damage