Fuel System; Air Filter; Removing And Installing The Carburetor - Stihl MS 240 Instruction Manual

14.

Fuel System

14.1

Air Filter

Dirty air filters reduce engine power,
increase fuel consumption and
make starting more difficult. The air
filter should be checked when there
is a noticeable loss of engine power.
– See also Troubleshooting,
b 4.5, b 4.6
2
: Turn twist lock (1)
counterclockwise.
– Remove the carburetor box
cover (2).
– Removing and installing the air
filter – see instruction manual.
– Reassemble in the reverse
sequence.
MS 240, MS 260, MS 260 C
14.2 Removing and Installing
the Carburetor
– Remove the air filter, b 14.1
– Open the fuel tank cap and drain
the fuel tank.
– Collect the fuel in a clean
container, b 1
Pull off the carburetor only when the
tank cap is open.
1
2
– Remove the handle molding,
b 12.2
: Disconnect the throttle rod (1)
from the trigger (2).
1
: Remove the fuel hose (1).
: Unscrew the nuts (arrows).
Versions with handle and
carburetor heating
1
: Remove connector (arrow) from
contact spring.
1
: Remove the heating plate (1) and
heating element (2).
– Remove the carburetor, check it
and service or replace if
necessary.
– Check the throttle rod and
replace if necessary, b 14.6
2
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