Spark Arresting Screen in Muffler
NIf engine performance deteriorates, check the spark arresting screen in the muffler
NLet the muffler cool down
1
2 
KN2310BA023
NUnscrew the screw (1)
NPull out spark arresting screen (2)
NClean the dirty spark arresting screen, replace if damaged or heavily carbonized
NRefit the spark arresting screen N Fit screw
Spark Plug
Removing the spark plug
NRemove the shroud – see "Shroud"
2410BA018 KN |
NPull off the spark plug boot N Unscrew spark plug
Checking the Spark Plug
| KN |
A | 000BA039 |
|
NClean dirty spark plug.
NCheck electrode gap (A) and readjust if necessary – see "Specifications."
NUse only resistor type spark plugs of the approved range.
English
Rectify problems that have caused fouling of spark plug:
–too much oil in fuel mix,
–dirty air filter,
–unfavorable running conditions, e.g. operating at part load.
1
2
000BA071 KN
WARNING
To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot (1) snugly onto spark plug terminal (2) of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be securely attached.) A loose connection between spark plug boot and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire.
MS 241 | 41 |
