Cleaning The Air Filter; Engine Management; Adjusting The Carburetor - Stihl MS 201 T Instruction Manual

Cleaning the Air Filter

If there is a noticeable loss of engine
power:
Turn cap 90° to the left
N
Lift off the shroud
N
Lift off the air filter
N
Wash the filter with STIHL special-
N
purpose cleaner (special
accessories) or a clean, non-
flammable cleaning liquid (e.g.,
warm soapy water) and dry it
NOTICE
Do not clean fleece filters (depending on
version) with a brush.
Always replace a damaged filter.
MS 201 T

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

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
Check the air filter and clean or
N
replace if necessary.
Check the spark arresting screen
N
(not in all models, country-specific)
in the muffler and clean or 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
clockwise as far as stop, then turn it
back 1/4 turn.
English
25