Stihl MS 250

45MS 210, MS 210 C, MS 230, MS 230 C, MS 250, MS 250 C
English / USA
: Pull off the spark plug boot.
: Unscrew and dry off the spark plug.
: Set the Master Control lever to stop
position $.
: Crank the engine several times with
the starter to clear the combustion
chamber.
: Refit the spark plug. Connect the
spark plug boot and reassemble all
other parts.
: Set Master Control lever to n
– even if engine is cold.
: Now start the engine.
If fuel tank has been run until dry and
then refueled:
Machines without easy start system:
: Pull starter rope several times until
fuel system is primed.
Machines with easy start system:
: Press fuel pump bulb (in handle
housing) several times.
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).
135BA038 KN
Operating Instructions