APRILIA SHIVER 900 Service Station Manual page 120

Electrical system
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Take the measurement; The correct value is determined by the value measured for each
stage in which from time to time the resistance of the tester wires is subtracted, obtained by
touching the two lugs.
Example:
•
Resistance of stage 1 read on the display = 0.65 Ohm
•
Resistance of the wires read on the display = 0.47 Ohm
•
Effective resistance stage 1 = 0.65-0.47 = 0.18 Ohm
•
If there is a significant difference between one stage and another (other than 0.15 Ohm),
this means that the alternator is defective and must be replaced.
ELE SYS - 120
SHIVER 900