Adjusting The Carburetor - Stihl HT 75 Manual De Instrucciones

On the screw-mounted filter cover:
2
3
Loosen the screw (3) and remove
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the filter cover (2).
On both versions:
Clean away loose dirt from around
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the filter.
Remove the foam and felt filter
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elements.
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.
HT 75
2
4
Fit the foam filter element (4) in the
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filter cover.
5
Place the felt element (5) (lettering
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facing inwards) in the filter
housing (6).
Fit the filter cover.
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Clip the filter cover in position or
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tighten down the screw 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
6
Shut off the engine
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Check chain tension
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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
"Adjusting the Throttle Cable".
Check the spark arresting screen
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(not in all versions) and clean or
replace as necessary.
English
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