A
B
C
D
E
F
G
H
L
M
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P
section
P 2
46 1098/1098S - M.Y. 2007 - edition 00
Electric system
Alternator
The motorcycle is equipped with a 12 V, 520 W alternator, consisting of a stator (A) located in the left-hand side crankcase cover
and a rotor (B) fixed to the crankshaft.
Notes
To check the charging system for possible faults, use the “DDS” tester (Sect. D 5, DDS tester).
The absolute value of voltage measured across the terminals of two of the three yellow cables (measured value will be the same
whichever the combination) must be within the range indicated in the table below.
(Ambient temperature: 20 °C)
Important
Before testing, disconnect the alternator wiring from the electrical system when the ignition key is set to OFF.
Values significantly lower than those indicated above can be due to:
- partially demagnetised rotor.
- short-circuited coil windings.
In the above cases the whole alternator assembly (rotor and stator) should be replaced.
If checks have a favourable outcome, reconnect the alternator to the regulator with ignition key on OFF. Make sure that no cables
are damaged or disconnected.
Engine rpm 2000 6000
effective V 27±10 78±10
B A
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