Andy, not sure the type of engine you have in your boat. Believe in that year, they had the Mercury, twin 787's, and if its the 14.5ft boat, 2-717's. If you've located an inline fuel lfilter, then there is no other one(screw type).:cheers:
My "post" only coincides with the rotax motor set-up. The 14.5ft boat, should have 2-screw type filters.