Cleaning the Air Filter
If there is a noticeable loss of engine
power:
Wash the filter in STIHL special-
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purpose cleaner (special
accessory) or a clean, non-
flammable cleaning liquid (e.g.,
warm soapy water) – rinse the filter
from inside to out under a water jet
– do not use high-pressure cleaners
Dry all filter parts – do not expose to
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extreme heat
Do not oil the filter
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Reinstall filter
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MS 441 C-M
Engine Management
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components (e.g.
carburation, ignition, timing and valve or
port timing) without the addition of any
major hardware.
M-Tronic
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:
Carry out five uniform cuts to length
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under full load
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