English
Erratic idling behavior, poor
acceleration (even though low speed
screw is open 1/4 turn)
Spark Arresting Screen in
Muffler
Spark Plug
In some countries the muffler is
equipped with a spark arresting screen.
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
N
If the engine is down on power,
check the spark arresting screen in
the muffler.
Fit a new spark plug after approx. 100
operating hours or earlier if the
electrodes are badly eroded.
N
Wait for the muffler to cool down.
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
N
Idle setting is too lean: Turn the low
speed screw (L) counterclockwise
until the engine runs and
accelerates smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA) after
every correction to the low speed
screw (L).
Removing the spark plug
N
N
Take out the screw (1).
N
Move the Master Control lever to the
Pull out the spark arresting
screen (2).
stop position (0).
Fine tuning for operation at high
altitude
N
Clean the spark arresting screen. If
the screen is damaged or heavily
carbonized, fit a new one.
A slight correction of the setting may be
necessary if engine does not run
satisfactorily:
N
N
Refit the spark arresting screen.
N
N
N
Check the standard setting.
Warm up the engine.
Insert the screw and tighten it down
firmly.
Turn high speed screw (H) slightly
clockwise (leaner) – no further than
stop.
N
N
Use the combination wrench to
open the fasteners (1) in the
direction of the arrow.
Remove the carburetor box
cover (2).
MS 441
39
| Categories | Chainsaw Manuals, STIHL Chainsaw Manuals |
|---|---|
| Tags | STIHL MS 441 |
| Download File |
|
| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Chainsaw |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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