Engine Running Behavior - Stihl FT 250 Instruction Manual

Use resistor type spark plugs with a
N
properly tightened adapter nut.
Installing the Spark Plug
Screw the spark plug (2) into the
N
cylinder and fit the boot (1) (press it
down firmly).
FT 250

Engine Running Behavior

If engine running behavior is
unsatisfactory even though the air filter
is clean and the carburetor and throttle
cable are properly adjusted, the cause
may be the muffler.
Have the muffler checked by a servicing
dealer for contamination
(carbonization).
1
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
2
Lubricating the Gearbox
2
1
Check the grease level regularly –
N
about every 25 hours of operation.
Unscrew the filler plug (1). If no
N
grease can be seen on the inside of
the filler plug, screw the tube (2) of
STIHL gear lubricant (special
accessory) into the filler hole.
Squeeze up to 5 g grease into the
N
gearbox.
NOTICE
Do not completely fill the gearbox with
grease.
Remove the tube of grease (2).
N
Refit the filler plug (1) and tighten it
N
down firmly.
English
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