Engine Management; Adjusting The Carburetor - Stihl BT 45 Manual De Instrucciones

Fit the filter cover, engage the two
N
tabs (arrows) at the bottom first.
Insert the screw and tighten it down
N
firmly.
BT 45

Engine Management

Exhaust emissions are controlled by the
design of the engine and components
(e.g. carburation, ignition, timing and
valve or port timing).

Adjusting the Carburetor

General Information
The carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
Preparations
Shut off the engine.
N
Remove the auger.
N
Check the air filter and clean or
N
replace if necessary.
Standard Setting
H
L
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 until it is against
its seat, then turn it back 1 full turn
English
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