English / USA
Standard Setting
if engine power is not satisfactory after a
change in altitude (mountains, sea level)
or after changing the cutting tool.
:
Open the throttle wide – and:
At high altitude
:
:
:
Shut off the engine.
Mount the cutting tool.
:
Turn high speed screw (H) clock-
wise (leaner) no further than stop
until there is no noticeable increase
in engine speed.
Rule of Thumb
Check the air filter and replace if
necessary.
Rotate the high speed screw (H)
about one eighth of a turn for every
3300 ft (1000 meter) change in
altitude.
:
Check that throttle cable is properly
adjusted – readjust if necessary –
see chapter "Adjusting the Throttle
Cable".
At sea level
: Turn the high speed screw (H)
Conditions for Adjustment
counterclockwise (richer) no further
than stop until there is no noticeable
increase in engine speed
:
:
Turn high speed screw (H)
counterclockwise (max. /4 turn)as
far as stop.
Adjust the high speed screw (H)
only if you are using a mowing head,
making sure the cutting lines are full
length (as far as the limiter blade on
the deflector).
3
Carefully screw the low speed
Idle Speed
screw (L) down onto its seat. Then
open it one turn counterclockwise.
It is usually necessary to change the
setting of the idle speed screw (LA)
after every correction to the low speed
screw (L).
If you mount a metal cutting tool,
use the standard setting.
:
:
Start the engine and run it until it is
warm.
:
:
Carry out the standard setting.
Adjust idle speed with the idle speed
screw (LA) so that the cutting tool
does not rotate.
Maximum engine speed is normally
reached with the standard setting.
:
Warm up the engine.
Warm up engine for about 5 minutes
if you are using a metal cutting tool
or about 3 minutes if you are using a
mowing head.
Engine stops while idling
Fine Tuning
:
Turn idle speed screw (LA) slowly
clockwise until the engine runs
smoothly – the cutting tool must not
rotate.
A slight correction of the setting of the
high speed screw (H) may be necessary
FS 120, FS 120 R, FS 200, FS 200 R, FS 250, FS 250 R
39
| Categories | Blower Vacuum and Sweeper Manuals, STIHL Trimmer Manuals, Trimmer Manuals |
|---|---|
| Tags | STIHL FS 120, STIHL FS 200, STIHL FS 250 |
| 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 |
(1 votes, average: 4 out of 4)
Lawn and Garden readers have rated STIHL FS 120 200 250 Trimmer Owners Manual 4.0 out of 4.0 based on 1 product reviews. You get what you paid for have FS 120 trimmer running like today I got it . If you maintain them and clean them after use they will last forever definitely would buy another one