First of all thank you very much for helping.

I have checked the primary and secondary and I see no damage, I am attaching the photo, in case you see something.
The strap was from aliexpress, possibly of poor quality.
I don't know what "did you line up the balance marks" is. I just removed one strap and put the other on.
If you can tell me what it is and how to do it "did you line up the balance marks". And if you would check something else before installing the new belt.

Thank you so much.

Hello.
At 4,400 kms the clutch belt broke.
I bought another one online and it has broken at 100 km.
I don't know if I should check something on the atv before installing the new belt?
Some help?
Thank you.

It's not a battery problem. I have tried another battery and the same thing happens.

The starter relay instead of making a single "click" makes a constant "click, click, click".

Every 20 or 30 attempts to boot, I manage to boot it.

help cforce 600

I need help with my cforce 600.

I send you a video so you can see my problem.

The starter relay works fine, I changed it for a new one and it is still the same.
I have tested the starter motor outside the quad and it also works well.

I have no idea what the problem is?

The starter relay seems to be turning on and off all the time.

Thank you very much for your attention and help.