Originally Posted by boater
a mate of mine had one with a 60 merc bigfoot that went well, there was one on boats and outboards recently with a Yamaha 55 that I missed out on, want the power trim/tilt which you don't get on smaller engines also want the power for pulling knee board etc
One I used to have was fitted with a Merc 60 after I sold it on the basis it was the same weight as the 50, and then fitted with towing post. I wonder if this was your mate ? ( red spray deck - was based in Swindon? )
A 55 yam may have been old enough to measure 55 at the head , but newer engines are measured at the prop - so an old 55 may easily be be down to the same as a 'newer' 50... ( it must have been an old engine as they stopped making 55hp a good time ago I reckon).
Have a go at the 'search' on here - top right ish - loads of SR4 info.