What is it for?

[billows]

On the rear floor panel of my Yam 360s there are two slots.There is also a rectangular piece of black plastic sheet about a foot square with a belt threaded through it and a clasp.Is it to tie down a fuel tank?Anyone know where I could look up the manual for this boat?

[chewy]

Pretty much certain its for lashing down the fuel tank.

[Redrock]

Hi Billows

The plastic square and strap is for a portable fuel tank. Check out the attached pic...