Yamaha YZF-R125 Service Manual: Checking the throttle body sensor assembly

Yamaha YZF-R125 Service Manual / Electrical system / Electrical components / Checking the throttle body sensor assembly

WARNING
  • Do not remove the throttle body sensor assembly.
  • Handle the throttle body sensor assembly with special care
  • Never subject the throttle body sensor assembly to strong shocks. If the throttle body sensor assembly is dropped, replace it.
Checking the coolant temperature sensor
1. Remove: Coolant temperature sensor WARNING Handle the coolant temperature sensor with special care. Never subject the coolant temperature sensor to strong shocks. If t ...

Throttle position sensor
1. Check: Throttle position sensor a. Connect the digital circuit tester to the terminals of the throttle body sensor assembly coupler as shown. Positive tester probe → gray/red t ...

Other materials:

Identification
Vehicle identification number The vehicle identification number "1" is stamped into the right side of the steering head pipe. Model label The model label "1" is affixed to the frame. This information will be needed to order spare parts. ...

Checking the ignition spark gap
1. Check: Ignition spark gap Out of specification Perform the ignition system troubleshooting, starting with step 5. Refer to "TROUBLESHOOTING" on page 8-3. NOTE: If the ignition spark gap is within specification, the ignition system circuit is operating normally. a. Disconnect the spa ...

Intake air temperature sensor
1. Check: Intake air temperature sensor resistance Out of specification Replace the throttle body. a. Connect the pocket tester ( × 1k) to the throttle body sensor assembly coupler as shown. Positive tester probe brown/white "1" Negative tester probe gray/black ...

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