Yamaha FX10X Service Manual page 740

SIGNAL SYSTEM
SPEED SENSOR
1. Inspect:
• Speed sensor
Inspection steps:
• Connect the pocket tester (DC 20 V) to the
speed sensor coupler (wire harness side) as
shown.
Positive tester probe → White
Negative tester probe → Black/Blue
Positive battery terminal → Blue
Negative battery terminal → Black/Blue
• Elevate the track and slowly rotate it.
• Measure the voltage (DC 5 V) of white and
black/blue. With each full rotation of the track
the voltage reading should cycle from 0.6 V to
4.8 V to 0.6 V to 4.8 V.
Out of specification → Replace.
8-36
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ELEC