![Sea-doo 1997 GSI Shop Manual Download Page 173](http://html.mh-extra.com/html/sea-doo/1997-gsi/1997-gsi_shop-manual_1221413173.webp)
Section 07
ELECTRICAL SYSTEM
Sub-Section 03
(CHARGING SYSTEM)
07-03-1
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 Engines
The magneto has a three-pole coil. Capacity is 160
watts.
787 Engine
The magneto has a 3 phase, “Y” wound stator on
18 poles. Capacity is 180 watts.
Rectifier/Regulator
717 Engines
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 Engine
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
SP, GTS and HX Models
A 15 A fuse protects the charging system.
SPX, GS, GSI, GSX, GTI, GTX and XP Models
Two 15 A fuses protect the charging system. The
first one is located on the MPEM and the second
one is located between the solenoid and the
MPEM.
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 rec-
tifier/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
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
engines or 5 amperes for the 787 engine. If not,
check magneto output prior to concluding that
rectifier is faulty.
Voltage Test
Proceed as follows:
– Start engine.
– Connect a DC voltmeter on battery posts.
– Bring engine to approximately 5500 RPM.
-
CAUTION
Do not use a higher rated fuse as this cause
severe damage.
www.SeaDooManuals.net
Summary of Contents for 1997 GSI
Page 1: ...www SeaDooManuals net ...
Page 2: ...0 0 SHOP MANUAL 0 219 100 048 www SeaDooManuals net ...
Page 343: ...www SeaDooManuals net ...
Page 344: ...www SeaDooManuals net ...
Page 345: ...www SeaDooManuals net ...
Page 346: ...www SeaDooManuals net ...
Page 347: ...www SeaDooManuals net ...
Page 348: ...www SeaDooManuals net ...
Page 349: ...www SeaDooManuals net ...
Page 350: ...www SeaDooManuals net ...
Page 351: ...www SeaDooManuals net ...
Page 352: ...www SeaDooManuals net ...
Page 353: ...www SeaDooManuals net ...
Page 354: ...www SeaDooManuals net ...
Page 355: ...www SeaDooManuals net ...
Page 356: ...www SeaDooManuals net ...
Page 357: ...www SeaDooManuals net ...
Page 358: ...www SeaDooManuals net ...
Page 359: ...www SeaDooManuals net ...
Page 360: ...www SeaDooManuals net ...
Page 361: ...www SeaDooManuals net ...
Page 362: ...www SeaDooManuals net ...
Page 363: ...www SeaDooManuals net ...
Page 364: ...www SeaDooManuals net ...
Page 365: ...www SeaDooManuals net ...
Page 366: ...www SeaDooManuals net ...
Page 367: ...www SeaDooManuals net ...
Page 368: ...www SeaDooManuals net ...
Page 369: ...www SeaDooManuals net ...
Page 370: ...www SeaDooManuals net ...
Page 371: ...www SeaDooManuals net ...
Page 372: ...www SeaDooManuals net ...