Checking The Fuel Sender; Checking The Speed Sensor - Yamaha MT-01 Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk
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a. Connect the pocket tester (Ω × 1k) to the en-
gine temperature sensor terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
3
b. Immerse the engine temperature sensor "1"
in a container filled with water "2".
NOTE:
Make sure that the engine temperature sensor
terminals do not get wet.
c. Place a thermometer "3" in the water.
d. Slowly heat the water, then let it cool down to
the specified temperature.
e. Measure the engine temperature sensor re-
sistance.
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3. Install:
• Engine temperature sensor
Engine temperature sensor
20 Nm (2.0 m·kg, 14 ft·lb)
EAS28230

CHECKING THE FUEL SENDER

1. Disconnect:
• Fuel pump coupler
• Fuel sender coupler
(from the wire harness)
2. Remove:
• Fuel tank
3. Remove:
• Fuel pump
(from the fuel tank)
4. Check:
• Fuel sender resistance
Out of specification → Replace the fuel pump
assembly.
Email: info@motomatrix.co.uk
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ELECTRICAL COMPONENTS
Fuel sender resistance
1.35–1.65 kΩ at 25 °C (77 °F)
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a. Connect the pocket tester (Ω × 1k) to the fuel
sender terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
green "1"
• Negative tester probe →
black "2"
b. Measure the fuel sender resistance.
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EAS28240

CHECKING THE SPEED SENSOR

1. Check:
• Speed sensor output voltage
Out of specification → Replace.
Output voltage reading cycle
0.6 V to 4.8 V to 0.6 V to 4.8 V
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a. Connect the pocket tester (DC 20 V) to the
speed sensor coupler (wire harness side) as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
white/yellow "1"
• Negative tester probe →
black/blue "2"
7-103
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