Wow!.....
Now that is old!.........I wish the pix were a bit clearer. My old eyes, in bi-focals can't see to well.
I did go into the library for you to check on the manuals. We only go back to about 1985. I didn't even know they made a Seadoo that long ago. I was about 10 years old then.
Good luck, I'm not to sure you'll find a manual that old. If you do, it will obviously be in paperback...........
Welcome to the Seadoo Forum.......:cheers: