Cleaning The Air Filter; Adjusting The Carburetor - Stihl FS 85 Instruction Manual

Cleaning the Air Filter

Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of engine
power
Set the choke lever to g.
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2
1
Loosen the screw (1) and remove
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the filter cover (2).
Clean away loose dirt from around
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the filter.
Remove the foam and felt filter
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elements.
FS 85, FS 85 R
Wash the foam element in a clean,
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non-flammable solution (e.g. warm
soapy water) and then dry.
Fit a new felt element – do not wash.
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As a temporary measure you can
knock it out on the palm of your
hand or blow it out with compressed
air.
Replace any damaged parts.
2
3
Fit the foam filter element (3) in the
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filter cover.
4
Place the felt element (4) (lettering
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facing inwards) in the filter
housing (5).
Fit the filter cover.
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Tighten down the screw in the filter
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cover firmly.

Adjusting the Carburetor

The carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
With this carburetor it is only possible to
adjust the high speed screw within fine
limits.
Standard Setting
Shut off the engine.
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Mount FS cutting attachment,
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power tool attachment or
KombiTool.
Check the air filter and clean or
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replace as necessary.
Check that the throttle cable is
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properly adjusted – readjust if
necessary – see chapter on
5
"Adjusting the Throttle Cable".
English
83