How about a Sticky with Capacity Plate Info

[tsubaki]

So the 1985 Fish20 weighs 1920lbs (V20 norm) max hp of 235 and 60gal fuel capacity.
The 1989 Fish20 weighs 2150lbs, max hp of 235 and 60gal fuel capacity.

You would expect your 1987 to be the same.

[A ReelCool Chick]

Maybe this link can help:
Calculating Boat Capacity

Even though it says Pennsylvania, you get the weight capacity by multiplying the number of people by an average weight of 150lbs. (weight takes into account people and gear, not motor). You get the number of people by multiplying the boat length by its width, then dividing by 15. Figure out the max HP for your motor, get its weight and there you have it.

[macojoe]

just added to the link page

[Cam]

I found this. It was posted by a member here a while back. Hope link works.