BOMBARDIER SEA-DOO GS 5626 1998, Shop Manual

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Section 08 ELECTRICAL SYSTEM
Subsection 03 (CHARGING SYSTEM)
08-03-1
CHARGING SYSTEM 0
GENERAL
Magneto
The purpose of the charging system is to keep the
battery at a full state of charge.
The magneto is the primary source of electrical
energy. It transforms magnetic field into electric
current (AC).
717 Engine
The magneto has a three-pole coil. Capacity is 160
watts.
787 and 947 Engines
The magneto has a 3 phase, “Y” wound stator on
18 poles. Capacity is 180 watts.
Rectifier/Regulator
717 Engine
A half-wave rectifier receives magneto AC current
and transforms it into direct current (DC) to allow
battery charging.
Included in the same unit, a regulator keeps volt-
age at a steady level (14.5 to 14.8 volts) to prevent
any damage to components.
787 and 947 Engines
A dual 1/2 wave series rectifier receives the mag-
neto AC current and transforms it into direct cur-
rent (DC) to allow battery charging.
Included in the same unit, a regulator keeps volt-
age at a steady level (14.5 to 14.8 volts) to prevent
any damage to components.
Battery
The battery is the DC source for the electric start-
er, the Multi-Purpose Electronic Module and all ac-
cessories.
Fuse
GTS Model
A 15 A fuse protects the charging system.
All Models Except GTS and XP Limited
Two 15 A fuses protect the charging system. The
first one is mounted on the MPEM and the other
one is located in the rear electrical box.
XP Limited
Two 15 A fuses protect the charging system. The
first one is mounted on the MPEM and the other
one is located in the front electrical box.
All Models
If the battery is regularly discharged, check fuse
condition.
The rectifier/regulator could be the culprit of a blown
fuse. To check, simply disconnect the rectifier/
regulator from the circuit.
If the fuse still burns, check for a defective wire.
TESTING PROCEDURE
NOTE: First, ensure that battery is in good condi-
tion prior to performing the following tests.
Rectifier/Regulator
NOTE: All models with a 947 engine, the rectifier/
regulator is integrated in the MPEM.
STATIC TEST: CONTINUITY
1. Due to internal circuitry, there is no static test
available.
DYNAMIC TEST
Current Test
Proceed as follows:
– Start engine.
– Lay an inductive ammeter on positive cable of
battery.
– Bring engine to approximately 5500 RPM.
Depending on battery charge, current reading
should be approximately 4 amperes for the 717
engine or 5 amperes for the 787 and 947 engines.
If not, check magneto output prior to concluding
that rectifier is faulty.
-
CAUTION
Do not use a higher rated fuse as this cause
severe damage.