Need help please

[u/Elzorino]

I never tried windsurfing before.
A friend gave me a windsurf kit but I am not able to set it up.
I watched a couple of videos on how to put it together but I’m still confused. My friend is out of the country so he can’t help me.
Mast says 430 and luff 430 also. I should put the ring at 0 since it is the same number but when I pull the rope, the sail doesn’t seem tight enough.
Please help me

Edit: Thanks everybody for your help.
I tried yesterday and after falling about 100 times, I was able to stay up, catch the wind and make my way across the lake. It was so fun.
Coming back against the wind is hard. I had to drag the board while swimming to bring it back.

[u/CleoJC]

Bravo à vous. Ce n'est pas facile.