Cleaning The Air Filter; Engine Management; Adjusting The Carburetor - Stihl FS 100 RX Instruction Manual

English

Cleaning the Air Filter

If there is a noticeable loss of engine
power
4
Turn the choke knob to g
N
Take out the screw (1) and remove
N
the filter cover (2).
Clean away loose dirt from around
N
the filter.
Grip the filter element (3) at the
N
cutout (arrow) in the filter
housing (4) and remove it.
Fit a new filter element. As a
N
temporary measure you can knock it
out on the palm of your hand or blow
it out with compressed air. Do not
wash.
Replace damaged parts.
N
Installing the filter
Install the filter element in the filter
N
housing and fit the cover.
Insert the screw and tighten it down
N
firmly.
24

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.
1
2

Adjusting the Carburetor

The carburetor of the machine has been
adjusted for optimum performance and
fuel efficiency in all operating states at
the factory.
Setting the idle speed
LA
Engine stops when idling
Let the engine warm up for approx.
N
3 min
Slowly turn idle speed screw (LA)
N
clockwise until the engine runs
smoothly – the cutting attachment
must not rotate
Cutting attachment turns when idling
Turn the idle speed screw (LA)
N
slowly counterclockwise until the
cutting attachment stops moving –
then turn another 1/2 to 3/4 turn in
the same direction
WARNING
If the cutting attachment continues to
keep rotating in idle even after
adjustment, have the machine checked
by a servicing dealer.
FS 100 RX