Stihl MS 240

57MS 240, MS 260, MS 260 C
9.6 Short Circuit Wire
9.6.1 Testing
If the spark plug, ignition lead and
spark plug boot are in order, check
the short circuit wire.
– Remove the fan housing, b 10.2
: Disconnect the short circuit wire
(1).
– Connect the ohmmeter to ground
(arrow) and the short circuit wire
(1).
– Set the switch shaft to "
0".
The resistance measured must be
about 0 Ω. If it is much higher, the
reason is a break and the wire has
to be replaced, b 9.6.2.
– Set the switch shaft to "F".
The resistance measured must be
infinitely high. If not, fit a new short
circuit wire,
b 9.6.2.
If no fault can be found, check the
ignition system with the aid of the
troubleshooting chart, b 9.7.
– Reassemble in the reverse
sequence.
165RA197 TG
1
9.6.2 Removing and Installing
– Remove the shroud, b 8.4
– Remove the fan housing,
b 10.2
– Remove the carburetor, b 14.2
The ground and short circuit wires
are combined in a wiring harness.
: Pull the short circuit wire (1) out
of the retainer (arrow), disengage
and remove the connector (2).
: Take out the screw and remove
the ground wire (3).
Versions with handle heating
: Pull the wiring harness (1) out of
the guides (arrows).
: Pull the pin and socket connector
(2) out of the guide and separate
it.
165RA198 TG
1
2
3
165RA199 TG
1
2
: Pry out the grommet (arrow).
The wire for handle heating is also
included in the wiring harness and
grommet, and has to be removed as
well
b 15.8.
– Pull the short circuit wire out of
the guide (arrow).
: Remove the connectors of the
short circuit wire (1) and ground
wire (2).
165RA200 TG
165RA482 TG
1
2