Yamaha YZF-R125 Quiz
Electrical system

Checking the fid (fast idle solenoid)

In this manual: Electrical system
General information — 15Specifications — 14Periodic checks and adjustments — 41Chassis — 67Engine — 76Cooling system — 12Fuel system — 10Electrical system — 61Troubleshooting — 13
~1min read

1. Disconnect:

  • FID (fast idle solenoid) coupler

2. Check:

  • FID (fast idle solenoid) resistance

a. Disconnect the FID (fast idle solenoid) coupler from the FID.

b. Connect the pocket tester ( × 10)
to the terminals of the FID (fast idle solenoid).

  • Positive tester probe
    red/black terminal "1"
  • Negative tester probe
    yellow/red terminal "2"

c. Measure the FID (fast idle solenoid) resistance.

Out of specification Replace
the throttle body assembly.


Checking the fid (fast idle solenoid)

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A quick Yamaha YZF-R125 quiz: every answer comes with an explanation and a link to the manual page.