MS 661 C-M
English
41
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.
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
N If engine performance deteriorates,
check the spark arresting screen in
the muffler
N Let the muffler cool down
N Remove four screws
N Remove exhaust casing (1) of the
muffler
N Bend back the retaining lugs (2)
N Pull out spark arresting screen (3)
N Clean the dirty spark arresting
screen, replace if damaged or
heavily carbonised
N Refit the spark arresting screen in
reverse order of steps
Engine Management M-Tronic Spark Arresting Screen in
Muffler
1
1166BA016 AM1166BA017 AM
2
3
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