49
MS 271 C, MS 291 C
:
Fit the puller (3) 5910 890 4504
on the flywheel and tighten the
screws (1) as far as stop.
– Tighten the screws uniformly.
Models with ErgoStart
Take care not to damage the pawls.
All models
:
Screw home the thrust bolt (2)
clockwise until the flywheel is
released from the crankshaft.
– Remove the puller (3)
5910 890 4504 from the flywheel.
The flywheel and magnet
poles (arrows) must not be
damaged or have turned blue.
Replace flywheel if necessary.
5902RA181 TG
1
1
2
3
0001RA167 TG
Models with ErgoStart
– Check the pawls for freedom of
movement and signs of damage,
b
8.4.
All models
The flywheel and crankshaft stub
must be free from grease before
assembly.
Make sure the key (arrow) engages
the slot in the crankshaft.
– Set the air gap between the
ignition module and flywheel,
b
7.3
– Reassemble all other parts in the
reverse sequence.
7.7
Short Circuit Wire
The ground and short circuit wires
are combined in a wiring harness.
If the spark plug, ignition lead and
spark plug boot are in order, check
the short circuit wire.
0001RA168 TG
7.7.1
Testing
– Remove the fan housing,
b
8.2
:
Pull the short circuit wire (1) out
of the guide (arrow) and take it
away.
– Connect the ohmmeter to
ground (2) and the short circuit
wire (1).
– Set the Master Control lever to
"
0
".
The resistance measured must be
about 0
Ω
. If it is much higher, the
reason is a break and the wiring
harness has to be replaced,
b
7.7.
– Set the Master Control lever to
"
F
".
The resistance measured must be
infinitely high. If not, replace the
wiring harness,
b
7.7.
Perform the contact and continuity
test on the ground wire too.
If the ground wire is damaged, the
complete wiring harness has to be
replaced.
– If no fault can be found, check the
ignition system with the aid of the
troubleshooting chart,
– Reassemble in the reverse
sequence.
2710RA144 TG
2
1
