English / USA
Adjusting the Carburetor
Standard Setting
Fine Tuning
:
:
Shut off the engine.
A slight correction of the setting of the
high speed screw (H) may be necessary
if engine power is not satisfactory when
operating at high altitude or at sea level.
Inspect cutting blades and clean if
necessary (they must be clean,
move freely and not be warped).
:
:
Check that throttle cable is properly
adjusted – readjust if necessary –
see chapter on "Adjusting the
Throttle Cable".
Rule of Thumb
:
:
Turn the high speed screw (H)
about one quarter turn for every
1000m
(3300 ft) change in altitude.
Check spark arresting screen (not
fitted in all markets) and clean or
replace as necessary.
Carry out the standard setting
without disturbing the high speed
screw (H) .
:
:
Check the air filter and clean or
replace as necessary.
:
:
Warm up the engine for about 3
minutes.
Carefully turn both adjusting screws
counterclockwise as far as the stop:
Open the throttle wide.
The high speed screw (H) and low
speed screw (L) are now 3/4 turn
open.
The carburetor comes from the factory
with a standard setting.
:
:
Start and warm up the engine.
This settingprovides an optimum fuel-air
mixture under most operating
conditions.
Adjust idle speed with the idle speed
screw (LA) so that the cutting
blades do not run.
With this carburetor it is only possible to
adjust the high speed and low speed
screws within fine limits.
22
HL 90 K
| Categories | Hedge Trimmer Manuals, STIHL Hedge Trimmer Manuals, Trimmer Manuals |
|---|---|
| Tags | STIHL HL 90 |
| Download File |
|
| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Trimmer |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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