Yamaha FJR1300N 2001 Service Manual page 574

13.Atmospheric pressure sensor output volt-
age
• Connect the pocket tester (DC 20 V) to the
atmospheric pressure sensor coupler termi-
nal as shown.
Tester positive probe → blue 1
Tester negative probe → black/blue 2
• Set the main switch to "ON".
• Measure the atmospheric pressure sensor
output voltage.
Atmospheric pressure sensor
output voltage
3.75 ~ 4.25 DCV
• Is the atmospheric pressure sensor OK?
YES
FUEL INJECTION SYSTEM
L B/L P
NO
Replace the atmo-
spheric pressure
sensor.
14.AI system solenoid
• Remove the AI system solenoid coupler
from the wire harness.
• Connect the pocket tester (Ω × 1) to the AI
system solenoid terminal as shown.
Tester positive probe → brown 1
Tester negative probe → brown/red 2
• Measure the AI system solenoid resistance.
AI system solenoid resistance
19 ~ 25 Ω at 20 °C
• Is the AI system solenoid OK?
EAS00818
15.Wiring
• Check the entire fuel injection system's wir-
ing.
Refer to "CIRCUIT DIAGRAM".
• Is the fuel injection system's wiring properly
connected and without defects?
Replace the ECU.
8 - 58
ELEC
Br Br/R
YES
Replace the AI sys-
tem solenoid.
YES
Properly connect or
repair the fuel injec-
tion system's wiring.
– +
NO
NO