Saving Old Seagulls

Hopefully an easier question what would be the recommended mixture for these engines please?

Thanks,
Bernie

Thanks - I decided to do a full strip and rebuild after all. Really pleasantly surprised how easily it has come apart so far and a really pretty engine. A couple of points of interest though. Opposite the water inlet connection to the water pump there is an adjustable needle valve (pic attached). Th...

Many thanks for your thoughts. I'm going to clean up the outside and then I'll check the waterways as suggested. I would usually do a full strip and rebuild on projects like this but I think the downside is possible damage to long-seized parts and the likelihhod of having to make all the gaskets fro...

I have just acquired a genuine 'barn find' aluminium 12' boat which I estimate dates from the immediate post-war era. It still has a 1974 river licence disc which I suspect was the last time it got wet! It's fitted with what I believe is a B.M.B. Mariner inboard with a direct drive coupled to a shaf...