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English / USA
MS 270, MS 270 C, MS 280, MS 280 C
If the engine doesn’t start:
If you did not move the Master Control
lever to “Warm Start” n quickly enough
after the engine began to fire, the
combustion chamber has flooded.
: Loosen knob (1) in direction of
arrow.
: Remove the carburetor box
cover (2).
: Pull off the spark plug boot (3).
: Unscrew and dry off the spark plug.
: Set the Master Control lever to
“Stop” position $
: Press down the interlock lever, open
the throttle wide and, at the same
time, crank the engine several times
with the starter to clear the
combustion chamber.
: Refit the spark plug and connect the
spark plug boot –
reassemble the other parts.
: Set Master Control lever to “Warm
Start” n – even if engine is cold.
: Press in decompression valve.
: Now start the engine.
During break-in period
A factory new machine should not be run
at high revs (full throttle off load) for the
first three tank fillings. This avoids
unnecessary high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
Do not make the mixture leaner to
achieve an apparent increase in
power – this could damage the
engine – see “Adjusting
Carburetor”.
Always disengage the chain brake
before opening the throttle. Running
the engine at higher revs with the
chain brake engaged (saw chain at
a standstill) will quickly damage the
engine and chain drive (clutch,
chain brake).
1
146BA010 KN
2
146BA009 KN
3
Operating Instructions