BOMBARDIER SEA-DOO GTX RFI 5666 1998, Руководство пользователя

Страница: 36 / 47

Section 05 ELECTRICAL SYSTEM
Subsection 02 (IGNITION SYSTEM)
05-02-1
IGNITION SYSTEM 0
GENERAL
On this ignition system, the spark plugs spark in-
dependently.
The Electronic Control Unit (ECU) controls the ig-
nition timing and signals the ignition coil at the
right time for optimum engine performance.
INSPECTION
Ignition Coil
IGNITION COIL
1. Primary side
2. Secondary side
3. Ground wire
Primary Winding
Disconnect the wire connector on the primary
side of the ignition coil.
Using a multimeter, check the resistance be-
tween the terminals 1 and 2. Repeat a resistance
test between terminals 2 and 3.
The resistance should be 0.41 ± 0.05
Ω
at 20°C.
If not within specification, replace the ignition coil.
If the ignition coil test good, check the power sup-
ply on the primary side.
There should be 12 Vdc between the RED and
WHITE/BLUE wires or between the RED and
WHITE/GREEN wires while starting the engine.
If there is no voltage, either the MPEM or the wir-
ing harness is defective.
Secondary Winding
Due to the integrated diode, it is not possible to
take any resistance measurement.
IGNITION TIMING
Adjustment
To perform this adjustment, proceed as follows:
NOTE: For the static and dynamic tests, refer to
the
1998 Sea-Doo Shop Manual.
Access the BOSCH SYSTEM in the MPEM pro-
grammer. Then, select ADJUSTMENT in the sub-
menu.
Choose IGNITION in the ADJUSTMENT menu.
The screen will display the actual adjustment of
the ignition timing in degrees and it will also offer
to adjust it.
Unlike the other models, the number in the
MPEM programmer corrects the ignition timing in
0.75° increments.
Ignition timing is set at 11° BTDC at 3300 RPM.
F07H0EA
1
3
2
TIMING CORRECTION CHART
PROGRAMMER NUMBER
(MPEM)
IGNITION TIMING
CORRECTION
4 3°
3 2.25°
2 1.50°
1 0.75°
0 0
-1 -0.75°
-2 -1.50°
-3 -2.25°
-4 -3°