Glad to hear your boat is running again. I am sorry you had to change the "not really a starter relay", but you now have a spare. Having a spare, and the tools, and the knowlege to change it probably means your relay in the boat, will never go bad. On the other hand, you now know more about your boat, and you most probably saved money over having the local dealer teoubleshoot your boat.
I probably have another two months before I will get my boat out.
I probably have another two months before I will get my boat out.