Adjusting The Carburetor - Stihl FS 160 Manual De Instrucciones

3 4
Remove the felt mat (3) and air
N
filter (4).
Knock out the felt mat or blow it
N
clear – if heavily loaded with dirt, fit
a new one.
Wash the air filter in a clean, non-
N
flammable solution (warm soapy
water) and shake it out thoroughly.
Replace damaged parts of the air
N
filter.
Install the air filter and felt mat.
N
Fit the carburetor box cover and
N
secure it in position.
FS 160, FS 220, FS 280, FS 290

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.
It ensures your machine will deliver
maximum power, be fuel efficient and
operate reliably.
Standard Setting
Stopping the engine
N
Mount the cutting attachment.
N
Check the air filter and clean or
N
replace as necessary.
Check that the throttle cable is
N
properly adjusted – readjust if
necessary – see chapter on
"Adjusting the Throttle Cable".
H L
Carefully turn the high speed
N
screw (H) and low speed screw (L)
clockwise down onto their seats.
Turn the high speed screw (H) one
N
full turn counterclockwise.
Turn the low speed screw (L) one
N
full turn counterclockwise.
Start and warm up the engine.
N
L
LA
Adjust idle speed with the idle speed
N
screw (LA) so that the cutting
attachment does not rotate.
Fine tuning (adjusting maximum RPM)
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, sea level or
after changing the cutting attachment.
H
Fine tuning is performed with the high
speed screw (H). It influences the
machine's power and maximum RPM
and must not be closed beyond the
basic setting.
English
87