MS 441 C-M
English
30
Basic information
M-Tronic regulates the fuel quantity and
ignition timing for all operating states
electronically.
M-Tronic stands for easy, fast starting,
constant optimum engine performance,
outstanding acceleration and automatic
adaptation to changes in operating
conditions.
Manual carburetor adjustments are no
longer required – the carburetor does
not have any adjusting screws.
Automatic adjustment
Under extremely changed operating
conditions, attainment of the optimal
setting can be accelerated as follows:
N
Carry out five uniform cuts to length
under full load
In some countries, the muffler is fitted
with a spark arresting screen.
N
If engine performance deteriorates,
check the spark arresting screen in
the muffler
N
Let the muffler cool down
N
Remove screw (1)
N
Pull out spark arresting screen (2)
N
Clean the dirty spark arresting
screen, replace if damaged or
heavily carbonized
N
Refit the spark arresting screen
N
Insert and tighten down the screw
N
If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N
Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the spark plug
N
Move the Master Control lever to the
stop position (
0
).
N
Use the combination wrench to
open the fasteners (1) in the
direction of the arrow.
N
Remove the carburetor box
cover (2).
M-Tronic
Spark Arresting Screen in
Muffler
Spark Plug
