Now I have my Ultimate Sibbing and camping trailer I will take more than one outboard. My Twatso and yam of course have different connectors but I tend to use the same two stroke mix on both. I don’t want to carry two tanks so have bought an adaptor hose from ebay that I hope has the correct twatso fitting for the tank end. If the other end is not correct for the yam I will use one from the many other pipes I have.
Spare mixed fuel will be in a lemonade bottle which is very easy to carry in a sib. Is small and very very strong when full
https://www.ebay.co.uk/itm/175566543112