Hi. I'm hoping someone can suggest where I can find a fuel cap for a 1991 Tanaka 300 Outboard. It split in half and is glued with epoxy. But has started to split again. From what I have learned Tanaka was made by Mercury in Japan and also distributed by Sears under the "Gamefisher" brand in the 90's. Sears no longer carries any parts. Its a great little outboard so I want to keep it. If I can't find a fuel cap do you have any suggestions as to what I could use as a workable replacement. Photos attached.....Thanks in advance. Chris