Sea-doo SP Shop Manual page 192

Section 07 ELECTRICAL SYSTEM
Sub-Section 05 (INSTRUMENTS AND ACCESSORIES)
Tachometer
GTX Model
3
RPM
2
1
Bombardier
0
F07H04A
The PURPLE wire is the 12 VDC power source of
the tachometer.
The BLACK wire is the ground.
The GRAY wire is the pulse signal from the multi-
purpose electronic module (MPEM).
Speed Sensor
GSX, GTI and GTX Models
The speedometer gives a reading through a
speed sensor. Speed sensor is installed on riding
plate. It works with the water flow which turns a
magnetic paddle wheel that triggers an electronic
pick-up that in turn sends a speed signal to the
speedometer.
The paddle wheel is protected by the pick-up
housing.
F01H3VA
1. Pick-up housing
2. Paddle wheel
07-05-2
4
5
6
x 1000
7
8
R
1
2
To check if the speed sensor is operational, dis-
connect the speed sensor connector housing
from inside bilge.
Using an appropriate terminal remover (Snap-on
TT600-4), remove the PURPLE/YELLOW and
BLACK/ORANGE wires from the tab housing of
the speed sensor.
R e c o n n e c t t h e P U R P L E / Y E L L O W a n d
BLACK/ORANGE wires in the receptacle housing.
Connect the positive probe of a voltmeter to
speed sensor PURPLE/YELLOW wire and the
negative probe to speed sensor BLACK/ORANGE
wire.
Depress the start/stop button to activate the tim-
er.
Spin the paddle wheel. There should be a voltage
fluctuation.
Speedometer
GSX, GTI and GTX Models
20
10
0
F07H05A
The PURPLE wire is the 12 VDC power source of
the speedometer.
The BLACK wire is the ground.
The PURPLE/YELLOW wire is the pulse signal
from the speed sensor.
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30
40
50
MPH
60
70
R