Yamaha R1 Series 2015, Service Manual

Page: 677 / 704

ELECTRICAL COMPONENTS
8-196
c. Measure the steering damper solenoid resis-
tance.
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EAS30681
CHECKING THE FUEL INJECTORS
The following procedure applies to all of the fuel
injectors.
1. Remove:
• Fuel injector
Refer to “THROTTLE BODIES” on page 7-9
or “AIR FILTER CASE” on page 7-4.
2. Check:
• Fuel injector resistance
Out of specification
o
Replace the fuel injec-
tor.
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a. Disconnect the fuel injector coupler from the
fuel injector.
b. Connect the pocket tester (
: u
10) to the fuel
injector coupler as shown.
c. Measure the fuel injector resistance.
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EAS31673
CHECKING THE WHEEL SWITCH
1. Check:
• Wheel switch “1” output voltage
Out of specification
o
Replace the right han-
dlebar switch.
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a. Connect the pocket tester (DC 20 V) to the
right handlebar switch coupler as shown.
b. Turn the main switch to “ON”.
c. When turning the wheel switch in direction “a”
and “b”, check that the output voltage is within
the specified values.
d. Connect the pocket tester (DC 20 V) to the
right handlebar switch coupler as shown.
e. When turning the wheel switch in direction
Fuel injector
Resistance
12.0
:
@20
q
C (68
q
F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Injector terminal “1”
• Negative tester probe
Injector terminal “2”
B B
1 2
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
white/green “2”
• Negative tester probe
black/yellow “3”
Output voltage reading cycle
More than 5 V to less than 0.5 V
then back to more than 5 V to
less than 0.5 V
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
•
Positive tester probe
white/black “4”
•
Negative tester probe
black/yellow “3”