Bombardier SeaDoo 2001 factory shop manual, Page 369Get this manual
Section 10 ELECTRICAL SYSTEM Subsection 03 (CHARGING SYSTEM)
NOTE: If it is continually necessary to add distilled water to the battery, this indicates an over voltage situation, requiring replacement of the rectifier regulatorIf, on the other hand, the battery will not stay charged, the problem can be any of the charging circuit componentsIf these all check good, you would be accurate in assuming the problem to be in the rectifierregulatorGS, GTS and GTI Models If there is no charging at the battery with the preceding voltage test, the following test can also be performedDisconnect the connector housing of the rectifier regulatorUsing an appropriate terminal remover (Snap-on TT600-4), remove the RED and BLACK wires from the tab housing of the rectifierregulatorReconnect the connector housingConnect the positive probe of multimeter to the RED wire and the negative probe to the BLACK wireSet multimeter to Vdc scaleStart and rev engine to 3500 RPMThe obtained value should be between 12 and 25 VdcNOTE: If the rectifierregulator is within the specification, either the MPEM or wiring harness between the rectifier and battery is defectiveIf the rectifier regulator is out of specification and the battery charging coil (or stator) test good, the rectifierregulator is defective