Stihl MS 240 User Manual

85MS 240, MS 260, MS 260 C
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
: 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.
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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.
– Remove the handle molding,
b 12.2
: Disconnect the throttle rod (1)
from the trigger (2).
: Remove the fuel hose (1).
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2
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: Unscrew the nuts (arrows).
Versions with handle and
carburetor heating
: Remove connector (arrow) from
contact spring.
: 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
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1

Stihl MS 240 Specifications

General

Chain pitch	3/8"
Oil Capacity	0.2 L
Guide bar length (recommended)	40 cm
Engine Power	2.0 kW (2.7 bhp)
Displacement	41.6 cm³