Yamaha WaveRunner - Speedometer;Average Speed;Tripmeter Display (for FX Cruiser High Output)

65
E
– +
ELEC
Speedometer/average speed/tripmeter dis-
play (for FX Cruiser High Output)
1. Check:
• Speedometer/average speed/tripmeter
display
Does not display
→
Measure the speed
sensor output voltage.
2. Measure:
• Speed sensor output voltage
Out of specification
→
Replace the
speed sensor.
Within specification
→
Replace the mul-
tifunction meter.
Digital multimeter:
YU-34899-A
Digital circuit tester:
90890-03174
Speed sensor output voltage
(dependant on the paddle wheel
position):
Less than 400 mV/
More than 5 V
Output pulse:
2 pulses/one-full turn
Measuring steps:
• Disconnect the coupler between the mul-
tifunction meter and the compass sensor
1
, and then connect it to a 12 V battery
as shown in the illustration.
• Rotate the paddle wheel and check the
output voltage and output pulses.
NOTE:
As the paddle wheel is rotated, a square-
wave voltage signal
a
is produced.
• If within specification, replace the multi-
function meter. If out of specification,
replace the speed sensor
2
.
NOTE:
Be sure to check the output voltage and
output pulses again after replacing the
speed sensor. If still out of specification,
replace the compass sensor.
N
S
S
N
DC V
R
G
B
12
INDICATION SYSTEM