Electrical system

Checking the lean angle sensor

~1min read

1. Remove:

  • Lean angle sensor

2. Check:

Lean angle sensor output voltage Out of specification Replace.


a. Connect the lean angle sensor to the wire harness.

b. Connect the pocket tester (DC 20 V) to the lean angle sensor coupler as shown.


Positive tester probe
yellow/green "1"

Negative tester probe
gray/black "2"

Checking the lean angle sensor

c. Set the main switch to "ON".

d. Tilt the lean angle sensor to 65.

e. Measure the lean angle sensor output voltage.

Test yourself

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