I have a 2011 yamaha F50 outboard that keeps over heating. The tell tale water flow is reduced and is coming out very hot after just a few minutes before I get the overheat alarm. I have pulled apart the water pump and replaced everything, pulled all the hoses and flushed them and still can't get it to cool. I found a nice sand bar last week with my jet and I think I have sucked up a fair amount of sand which has settled in the engine. Ive been flushing it with the fresh water hookup and also with muffs with the engine running and its not doing much to improve. I do get a small amount of sand out every time, so I know its sand. Just don't know where else in the cooling system to go or how to take it apart.
And of course every service in Town is 4-5 weeks booked and hunting season is around the corner.
Suggestions or thoughts appreciated.