Yes it has an electric fuel pump.
Could it possibly be something to do with that?
Here's the link for pictures
https://m.facebook.com/story.php?story_fbid=pfbid0G6wnbJYGJKpiuf8kMG2142B6CJAL1dG6Em4p33CJJSeorBoSdbFyzn4dykthYdgKl&id=100033168756797&mibextid=Nif5oz
https://m.facebook.com/story.php?story_fbid=pfbid027kbZWn7RsGXbevxCVC1ocCPcNCoeGjwcH1w1MKgpjbF6FfVwkBerdy9AiNp2Y59ul&id=100033168756797&mibextid=Nif5oz
My mistake I looked it up 1989
Pictures found here...
Inherited this boat halfway through repair and this was one of the parts.
Trying to upload a picture but it won't allow me.
It seems to be a relay.
Black plastic box no writing on it about 1 in dimension on all sides.
was bolted to the top of the thermostat housing.
Has four wires...
