English
3
WARNING
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press the spark plug
boot (1) snugly onto the spark plug
terminal (2).
Do not use a spark plug with a
detachable SAE adapter terminal (3).
Arcing may occur that could ignite
combustible fumes and cause a fire.
This can result in serious injuries or
damage to property.
Only use resistor type spark plugs
N
with solid, non-threaded terminals
24
Installing the spark plug
1
2
Screw the spark plug (3) into the
N
cylinder and fit the boot (2) (press it
down firmly).
Spark Arresting Screen in
Muffler
Spark arresting screen in muffler
If the engine is down on power,
N
check the spark arresting screen in
2
the muffler.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
3
BR 450, BR 450 C