Checking The Throttle Position Sensor; Checking The Fuel Pump - Yamaha MT-01 T 2005 Service Manual

W
b. Turn the main switch to "ON".
c. Elevate the rear wheel and slowly rotate it.
d. Measure the voltage of white/yellow and
black/blue. With each full rotation of the rear
wheel, the voltage reading should cycle from
0.6 V to 4.8 V to 0.6 V to 4.8 V.
L LLL L LLL L L LLL L
EAS28300
CHECKING THE THROTTLE POSITION
SENSOR
1. Remove:
• Throttle position sensor
(from the throttle body)
2. Check:
• Throttle position sensor maximum resistance
Out of specification → Replace the throttle
position sensor.
Resistance
4.0–6.0 kΩ/blue-black
M MMM M MMM M M MMM M
a. Connect the pocket tester (Ω × 1k) to the
throttle position sensor terminal as shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
blue "1"
• Negative tester probe →
black "2"
1
W/Y
L L
B
B/ L
2
L LLL L L LLL L L LLL L
M MMM M M MMM M M MMM M
ELECTRICAL COMPONENTS
b. Measure the throttle position sensor maxi-
mum resistance.
L LLL L LLL L
3. Install:
• Throttle position sensor
NOTE:
LLL
When installing the throttle position sensor, ad-
just its angle properly. Refer to "ADJUSTING
THE THROTTLE POSITION SENSOR" on page
6-10.
EAS28350

CHECKING THE FUEL PUMP

EWA13850
WARNING
Gasoline is extremely flammable and under
certain circumstances there can be a danger
of an explosion or fire. Be extremely careful
and note the following points:
• Stop the engine before refueling.
• Do not smoke, and keep away from open
MMM
flames, sparks, or any other source of fire.
• If you do accidentally spill gasoline, wipe it
up immediately with dry rags.
• If gasoline touches the engine when it is
hot, a fire may occur. Therefore, make sure
the engine is completely cool before per-
forming the following test.
1. Disconnect:
• Fuel pump coupler
• Fuel sender coupler
(from the wire harness)
2. Remove:
• Fuel tank
3. Check:
• Fuel pump operation
Faulty/rough movement → Replace.
7-104
2 1
B Y L
L LLL L L LLL L L LLL L L LLL L LLL