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.
TS 410, TS 420
Adjusting the Carburetor
Basic information
The ignition system of this cut-off
machine is equipped with an electronic
maximum speed limiter. The maximum
speed cannot be increased beyond a
specified limit.
The carburetor comes from the factory
with a standard setting.
The carburetor has been adjusted for
optimum performance and fuel
efficiency in all operating states.
Preparing the machine
Switch off the engine
N
Check the air filter – clean or replace
N
it if necessary
Check the spark arresting screen in
N
the muffler (present only in some
countries) – clean or replace it if
necessary
Standard setting
Turn the high speed adjusting
N
screw (H) counterclockwise as far
as possible (max. 3/4 turn)
Turn the low speed adjusting
N
screw (L) clockwise as far as
possible – then turn it 3/4 turn
counterclockwise
Setting the idle speed
Make standard setting
N
Start engine and let it warm up
N
Engine stops when idling
Turn the idle speed adjusting
N
screw (LA) clockwise until the
abrasive wheel begins to rotate –
then turn it back 1 turn
English
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