Thanks for everyone's help
I've bought a replacement motor though have also decided to push ahead and repair this one before I pop it in a Graupner Gtx outboard that won't be requiring full throttle or sea use.
The motor was a cheap Johnson 540 from around 2004 and has been used most years since then so has served well though I do enjoy tinkering away and reviving components.
It reminded me of my first real sailboat and I hadn't tightened my outboard clamps properly in a rush to meet the tide. Yip it jumped off the transom while running and it took almost a month to find and recover it. It then sat in garage for 6 months before I decided to strip it to bits and rebuild.
I still use it today as my back up as have an inboard on my sailboat and on testing it's never missed a beat
My father would agree with me being a tinkerer too as he had a lovely Ford Cortina when I was 7 and I decided it needed touching up with a chisel and an oil top up into the radiator.
After that event I deem myself lucky to be able to be typing this or even breathing 🙈
Thanks again to all
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