Yamaha FX Nytro 2008 Manuel D'atelier page 636

2
1
FUEL INJECTION SYSTEM
ISC (IDLE SPEED CONTROL) UNIT
NOTE:
Do not remove the ISC (idle speed control) unit
completely from the throttle body.
1. Inspect:
• ISC (idle speed control) unit
Inspection steps:
• Disconnect the ISC (idle speed control) unit
coupler from the ISC (idle speed control) unit.
• Connect the pocket tester (Ω × 10) to the termi-
3
nals of the ISC (idle speed control) unit.
Positive tester probe → Red/Green 1
Negative tester probe → White/Green 2
4
Positive tester probe → Brown/Blue 3
Negative tester probe → Pink/Blue 4
Pocket tester:
Analog pocket tester:
• Measure the ISC (idle speed control) unit resis-
tance.
Out of specification → Replace the throttle
body.
ISC (idle speed control) unit resis-
tance:
7-26
FI
90890-03112
YU-03112-C
57 ~ 63 Ω at 20 °C (68 °F)