Engine Running Behavior; Lubricating The Gearbox - Stihl FS 160 Instruction Manual

English
► Rectify the problems which have caused foul‐
ing of the spark plug.
Possible causes are:
– Too much oil in fuel mix.
– Dirty air filter.
– Unfavorable running conditions.
WARNING
Arcing may occur if the adapter nut (1) is loose
or missing. Working in an easily combustible or
explosive atmosphere may cause a fire or an
explosion. This can result result in serious inju‐
ries or damage to property.
► Use resistor type spark plugs with a properly
tightened adapter nut.
20.3 Installing the spark plug
1
► Screw home the spark plug, fit the boot (3)
and press it down firmly.
90
1
1
2
3

21 Engine Running Behavior

► Fit the shroud (2).
► Insert the screws (1) and tighten them down
firmly.
21 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).
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer.

22 Lubricating the Gearbox

Use STIHL gear lubricant (special accessory) for
lubrication.
► Check grease level about every 100 hours of
operation.
► Unscrew the filler plug (1). If no grease can be
seen on the inside of the filler plug, screw the
tube of lubricant (2) into the filler hole.
► Squeeze up to 5 g grease into the gearbox.
NOTICE
Do not completely fill the gearbox with grease.
► Refit the filler plug and tighten it down firmly.
1
2
0458-323-8721-D