40hp yammie - brilliant bit of kit. We sold our mariner 40 EL ( a yammie at this vintage) on one of our fishing boats. been on three different new boats and never missed a beat for at least 17 years Ireland, Scotland west and east coasts, wales south coast and of course the Irish sea - you name it it had been there summer and winter diving and fishing- taught afew people water ski-ing behind it. Still on original impeller, propeller, etc ( I did change the spark plugs once or perhaps twice - but you do have to splash out now and then don't you
Now come to think of it it did miss a few beats once when the suction pipe in the fuel tank fell off! Dropped into bottom of tank under 20l of 2 stroke. Made a new pipe at sea out of some plastic piping from the cabin and shoved it onto the mounting inside the tank and carried on with the trip. The tank and the fuel line were the only bits that weren't yamaha - they were mercury bits that made it a mariner.