Stihl BR 320 - Page 20

If the engine is down on power, check
the spark arresting screen in the muffler.
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Wait until engine has cooled down
completely before performing the
following operations.
•
Take out starter cover mounting
screws .
•
Remove the starter cover .
•
Pull off the spark plug boot .
•
Take out the housing mounting
screws .
•
Remove the housing .
•
Squeeze the ends of the clip 
together and lift the clip away.
•
Take the spark arresting screw 
out of the muffler.
•
Clean the spark arresting screen.
•
If screen is damaged or heavily
carbonized, fit a new one.
•
Install the spark arresting screen .
•
Fit the clip .
•
Place housing  in position.
•
Tighten down housing screws.
•
Fit the spark plug boot .
•
Fit the starter cover .
•
Tighten down the starter cover
screws .
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