Stihl KM 55 R User Manual

KM 55 R, KM 55 RC
English
15
Both versions
N Do not let the starter grip snap back.
Guide it slowly back into the housing
so that the starter rope can rewind
properly.
N Crank the engine until it fires – after
no more than five pulls, move the
choke lever (8) to e.
N Continue cranking.
As soon as the engine runs
N Squeeze the throttle trigger to
disengage the tongue – the engine
will settle down to idle speed.
Your machine is now ready for
operation.
Stopping the engine
N Move the stop switch to 0.
If the engine does not start
If you did not move the choke lever to e
quickly enough after the engine began to
fire, the combustion chamber is flooded.
N Set the choke lever to
e .
N Set the stop switch, lockout lever
and throttle trigger to the starting
throttle position.
N Start the engine by pulling the
starter rope briskly – 10 to 20 pulls
may be necessary.
If the engine still does not start
N Move the stop switch to 0.
N Remove the spark plug – see
"Spark Plug".
N Dry the spark plug.
N Crank the engine several times with
the starter to clear the combustion
chamber.
N Refit the spark plug – see "Spark
Plug".
N Move the stop switch to I.
N Set the choke lever to e – even if
the engine is cold.
N Now start the engine.
Fuel tank run until completely dry
N After refueling, press the fuel pump
bulb at least five times – even if the
bulb is filled with fuel.
N 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.
During Operation
After a long period of full throttle
operation, allow the engine to run for a
short while at idle speed so that engine
heat can be dissipated by the flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. Empty the fuel tank
and keep the machine in a dry place,
well away from sources of ignition, until
you need it again. For longer out-of-
service perionds – see "Storing the
Machine".
Make sure the carburetor is
correctly adjusted. The working
tool must not move when the
engine is idling.
8
232TI015 KN
Operating Instructions

Stihl KM 55 R Specifications

General

Engine Type	2-stroke
Displacement	27.2 cc
Weight	4.4 kg
Weight (lbs)	9.7 lbs
Engine Power	0.8 kW / 1.1 hp