Adjusting The Carburetor - Stihl KM 85 R Instruction Manual

2
4
Fit the foam filter element (4) in the
N
filter cover.
5
Place the felt element (5) (lettering
N
facing inwards) in the filter
housing (6).
Fit the filter cover.
N
Clip the filter cover in position or
N
tighten down the screw firmly.
KM 85 R

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 and low speed
screws within fine limits.
Standard Setting
6
Shut odd the engine.
N
Mount the KombiTool complete with
N
working tool or cutting attachment.
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".
Check the spark arresting screen
N
(not in all versions) and clean or
replace as necessary.
H
3 / 4
Turn high speed screw (H)
N
counterclockwise as far as stop (no
more than 3/4 turn).
Turn the low speed screw (L)
N
carefully clockwise as far as stop,
then turn it back 1 turn.
Start and warm up the engine if
N
necessary.
Adjust idle speed with the idle speed
N
screw (LA) so that the cutting
attachment does not move.
Fine Tuning
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 working tool.
English
L
1
LA
13