If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
:
Remove spark plug as described
in chapter "Starting / Stopping the
Engine".
:
Clean dirty spark plug.
:
Check the electrode gap (A) and
readjust if necessary – see
"Specifications".
:
Use only resistor type spark plugs
of the approved range.
Rectify problems which have caused
fouling of spark plug:
:
Too much oil in fuel mix.
:
Dirty air filter.
:
Unfavorable running conditions,
e.g. operating at part load.
Fit a new spark plug after approx.
100 operating hours
or earlier if the electrodes are badly
eroded.
FC 100
1
To reduce the risk of fire and burn
injury, use only spark plugs
authorized by STIHL. Always press
spark plug boot (2) snugly onto
terminal (1) of the proper size.
(Note: If terminal has detachable
SAE adapter nut, it must be
attached.) A loose connection
between spark plug boot and
ignition wire connector in the boot
may create arcing that could ignite
combustible fumes and cause a fire.
Lubricating the
Gearbox
2
:
Check grease level regularly, about
every 25 hours of operation.
:
Unscrew the filler plug (1).
If no grease can be seen on the
inside of the filler plug,
screw the tube (2) of STIHL gear
lubricant for brushcutters – see
"Special Accessories" – into the filler
hole.
:
Squeeze up to 1/5 oz (5 g) grease
into the gear housing.
Do not completely fill the gear
housing with grease.
:
Refit the filler plug and tighten it
down firmly.
English / USA
2
1
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