Stihl MS 260 Instruction Manual - Page 42

Operating Instructions

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English / USA Operating Instructions : Refit the spark plug. Connect the spark plug boot (press it down firmly). : Set Master Control lever to n - even if engine is cold. : Press in button to open the decompression valve. : Now start the engine. 133BA010 KN 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. : Turn the twist lock above the rear handle 90° counterclockwise. : Lift off the carburetor box cover vertically. : Pull off the spark plug boot. : Take out the screw and remove the shroud. : Unscrew and dry off the spark plug. : Set the Master Control lever to Stop position 0 : Crank the engine several times with the starter to clear the combustion chamber. Fuel tank run dry and then refueled: : Press in button to open the decompression valve. Pull the starter several times to prime the fuel line. 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). MS 260 41

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41
MS 260
English / USA
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.
:
Turn the twist lock above the rear
handle 90° counterclockwise.
:
Lift off the carburetor box cover
vertically.
:
Pull off the spark plug boot.
:
Take out the screw and remove the
shroud.
:
Unscrew and dry off the spark plug.
:
Set the Master Control lever to Stop
position
0
:
Crank the engine several times with
the starter to clear the combustion
chamber.
:
Refit the spark plug. Connect the
spark plug boot (press it down
firmly).
:
Set Master Control lever to
n
–
even if engine is cold.
:
Press in button to open the
decompression valve.
:
Now start the engine.
Fuel tank run dry and then
refueled:
:
Press in button to open the
decompression valve.
Pull the starter several times to prime
the fuel line.
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).
133BA010 KN
Operating Instructions