Electrical system
Checking the starter motor operation
In this manual: Electrical system
~1min read
1. Check:
- Starter motor operation Does not operate → Perform the electric starting system troubleshooting, starting with step 4.
a. Connect the positive battery terminal "1" and starter motor lead "2" with a jumper lead "3".
WARNING- A wire that is used as a jumper lead must have at least the same capacity of the battery lead, otherwise the jumper lead may burn.
- This check is likely to produce sparks, therefore, make sure no flammable gas or fluid is in the vicinity.

b. Check the starter motor operation.
Test yourself
A quick Yamaha YZF-R125 quiz: every answer comes with an explanation and a link to the manual page.
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