2 hp Mercury thruster cooling problem

[<Harold_63>]

Help, just cleaned out the water channel around the head(which was completely blocked) and replaced gasket. Started up again and running fine(exhaust water coming out both holes in a steady stream), but stream gets rapidly weaker then stops after running for a while (5/10 minutes), although there is still air coming out under pressure. Started up again today and no exhaust water at all? Is there something working it's way up to block the ducts? Or is there something more sinister going on?Any help greatly appreciated.

[<SeaFoxMan257>]

Sorry i cant help you with your question, but I have a question you might be able to me help with. I'm trying to find out what the correct fuelil mixture is for the 2hp thruster, is it 50:1?

Thanks a lot!