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Replacing the return spring
Remove the fan housing and cord drum (see "Replacing the
starting cord").
Carefully take the return spring (9) out of the fan housing.
CAUTION:
Danger of injury! If the spring is broken it can jump out!
Carefully put in a new return spring.
Cleaning the muffler / spark arrester screen
The spark arrester screen should be checked and cleaned
regularly.
Remove the sprocket guard (see "PUTTING INTO OPERATI-
ON" Fig. B).
Unscrew the muffler and disassemble it.
Remove the spark arrester screen (10).
Remove the carbon deposits from all parts.
CAUTION: Do not use sharp or pointed objects for screen
cleaning. Damaged or misformed screen wires may result.
NOTE: If the muffler gasket is damaged, replace it.
Reassemble the spark arrester screen (10) and the muffler and
tighten the screws.
Tighten muffler bolts to 2.7 - 3.3 ft. lbs. (4 - 5 Nm).
Cleaning the cylinder space
Remove the sprocket guard (see "PUTTING INTO OPERATI-
ON" Fig. B).
Remove the fan housing (see "Replacing the starting cord").
If necessary unscrew the muffler and cover the cylinder ope-
ning with a cloth.
Use a suitable tool (wooden scraper) to clean out the cylinder
space (11), especially the cooling fins.
10
10
10
9
D
E
11
F
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