Managed to get out on Saturday afternoon, went to Bawdsey and launched on the beach. I'd not run this engine in the water before and so was nervous how it would be when warm ect. Turns out it was superb... Boat is suffering from a little cavitation and i had played with the trim. It maybe the boat was under inflated. It says 3.6psi on the tubes, but we got the gauge I'd bought off of eBay to 2.4psi and they seemed solid... I started to doubt the accuracy of the gauge. Or did I need to pump more?
Picked up another spares or repairs 2hp Johnson engine today. New plug, rewound the pull start, unblocked the fuel line and it runs superb :-) it will make a great spare engine and an engine for the Norfolk broads. Of which the 15hp is a bit much for.
Now i need to plan some clever storage on the boat!
Here's a video of today's purchase.