Checking The Fuel Meter/Fuel Level Warning Light; Checking The Speed Sensor - Yamaha Wolverine YX70EPNG Service Manual

Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
orange/black "1"
• Negative tester probe →
black/white "2"
1 2
b. Move the fuel sender float to minimum "3"
and maximum "4" level positions.
4
3
c. Measure the fuel sender resistance.
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EBS30308
CHECKING THE FUEL METER/FUEL LEVEL
WARNING LIGHT
This model is equipped with a self-diagnosis de-
vice for the fuel level detection circuit.
1. Check:
• Fuel meter/fuel level warning light "1"
(Turn the main switch to "
R/L B B/W O/B
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
" [on].)
ELECTRICAL COMPONENTS
Warning light comes on for a few seconds,
then goes off → Warning light is OK.
Warning light does not come on → Replace
the meter assembly.
Warning light flashes eight times, then goes
off for 3 seconds in a repeated cycle (mal-
function detected in fuel sender) → Replace
the fuel pump assembly.
EBS30309

CHECKING THE SPEED SENSOR

1. Check:
• Speed sensor output voltage
Out of specification → Replace.
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a. Connect the test harness– speed sensor (3P)
"1" between the speed sensor coupler and
wire harness as shown.
b. Connect the pocket tester (DC 20 V) to the
test harness– speed sensor (3P).
• Positive tester probe →
white (wire harness color)
• Negative tester probe →
▲▲▲
black/blue (wire harness color)
9-104
Output voltage reading cycle
0.6 V–4.8 V–0.6 V–4.8 V–0.6 V
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Test harness– speed sensor (3P)
90890-03208
Test harness– speed sensor (3P)
YU-03208
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
1
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