Honda Chaly (CF50) earth ground cords - positions

Hello,

I would like to ask how many earth ground cords are on the Chaly - CF50 electrical circuit and where are they located.
I have seen one under the tail light and wondering if there are more.
I have to clean them since I have a few issues with the indicators and rear stop light.

Thanks!!

It would always be worth adding extra earth cables on an older bike, particularly if it has been repainted or powder coated. I would at least add an extra earth wire from the headlamp shell back to the main frame.