Engine Management; Adjusting The Carburetor - Stihl BG 55 Manual De Instrucciones

4
3
Take the filter (3) out of the filter
N
housing (4).
Install a new filter. As a temporary
N
measure you can knock it out on the
palm of your hand or blow it out with
compressed air – do not wash.
Replace any damaged parts.
Fit the filter (3) in the filter
N
housing (4).
Fit the filter cover (2) so that it snaps
N
into position.
BG 55, BG 65, BG 85, SH 55, SH 85

Engine Management

Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components (e.g.
carburation, ignition, timing and valve or
port timing) without the addition of any
major hardware.

Adjusting the Carburetor

Carburetor with Idle Speed Screw (LD)
The carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
Standard Setting
LD
+
-
Check the air filter and clean or
N
replace as necessary.
Warm up the engine.
N
Carefully screw the idle speed
N
screw (LD) counterclockwise (left-
hand thread) down onto its seat.
Then open it two full turns clockwise
(standard setting).
English
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