7-5
start/stop
switch
C_BB/9
3
2
1
4
Pin 8
Pin 2 Pin 7
Pin 1
Checking the starter relay
– Disconnect the negative pole from the battery and dismount the start
relay.
NOTE: white/red
1
and brown
2
cable colors.
– Connect the starter relay to a 12 V battery, making sure you hear the
relay switch (nonrecurring "click").
NOTE: the 12 V battery must be connected to the same terminals to
which the 3 white/red and the brown cable are connected when the
connector is attached.
– Check the continuity between the two screw terminals with an
ohmmeter.
Reading: max. 1
Ω
OK
Reading:
∞ Ω
defective
– Pull out the fuse of the starter relais and check for continuity.
Checking the starter engine
– Switch off the ignition.
– Disconnect the negative pole of the battery and remove the electric
starter motor.
– Clamp startermotor in a vice.
– Connect the negative pole of a 12 V battery to the housing of the
E starter motor and briefly connect the positive pole of the battery to
connection of the electric starter motor (use thick cables).
– The starter must turn as soon as the circuit is closed.
– If this is not the case, replace the starter.
Checking the clutch switch
– Disconnect the clutch switch connector from the cable tree.
– Connect an ohmmeter to the bipolar connector AL
3
(yellow and
brown cable colors) of the clutch switch and slowly pull the clutch
lever.
– The switch should close around 2/3 of the lever travel.
Reading: max. 1
Ω
when the clutch lever is pulled
Reading:
∞ Ω
when the clutch lever is not pulled
Checking the tip switch and emergency OFF switch
– Disconnect the four-terminal connector BB
4
on the tip switch /
emergency OFF switch from the cable tree.
– Check both switches with an ohmmeter.
Tip switch: between pin 1 and pin 8
Reading: max. 1
Ω
when the tip switch is actuated
Reading:
∞ Ω
when the tip switch is not actuated
Emergency OFF switch: between pin 2 and pin 7
Reading: max. 1
Ω
when the emergency OFF switch is switched on
Reading:
∞ Ω
when the emergency OFF switch is switched off
– Afterwards check all lines for short circuit to ground.
Troubleshooting in the starter system
If you actuate the tip switch but the starter engine does not run, check
the following points:
– Is the ignition lock in the ON position?
– Is the emergency OFF switch in the ON position?
– Does the idle indicator lamp light up when the ignition is switched
on?
– Can you start the engine when the clutch is pulled?
– Is the battery charged?
– Has the main fuse blown?
– Has the fuse for the electric starter system and ignition blown?
– Check the auxiliary starter relay
– Check the starter relay
– Check the E-starter engine