Another Clamshell owner!
Ahhh, yes - the subtle differences of the "two prong" connectors! Suffice to say That's one of the reasons I standardised on the "twistlock" back when I had a Suz..... that sort of incompatibility was doing my head in!
I think you might even get away with an Evenrude one! I have successfully fed a 1994 'rude 8 using the fixed fuel line off a tank that was supplied with a 1980-ish Mariner 15. The same connector also worked with a 1972 Johnson 20.......
If you have a twistlock on the engine, it may be easier to change the tank connector & standardise. (also means if you take the fuel line off you can connect the in end to the out end & keep the fuel seals in the bore clean)
The twistlock type connector comes in both M & F flavours, and by judicious choice you can either fit a short hose or screw it straight into the top of your tank. Have a look in the "wake shot" thread for a post by me - I think one of the photos shows how I got round it.