Engine Management; Adjusting The Carburetor - Stihl TS 410 Notice D'emploi

English

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.
28

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.
The high speed adjusting screw on this
carburetor can only be set within narrow
limits.
Standard setting
N Switch off engine
N
Only replace the air filter if the
engine is noticeably down on power
N Check the spark arresting screen in
the muffler (present only in some
countries) – clean or replace it if
necessary.
N
Carefully turn the high speed
adjusting screw (H)
counterclockwise as far as possible
– rich setting stop
N Carefully turn the low speed
adjusting screw (L) clockwise as far
as possible, then open it 1 turn
Setting the idle speed
Engine stops when idling
N Make standard setting!
N Turn the idle speed adjusting
screw (LA) clockwise until the saw
chain begins to run – then turn it
back 1 turn
Abrasive wheel runs when idling
N Make standard setting!
N Turn the idle speed screw (LA)
counterclockwise until the chain
stops running – then turn another
full turn in the same direction.
Erratic idling behavior, poor
acceleration
Idle speed setting is too lean (e. g., at
low ambient temperature).
TS 410, TS 420