2005 optimax 150hp 2 stroke

by Bryan
(Tampa, FL)

I had my water pump replaced last year along with new thermostats also and now after sitting for a couple of months the starting it every other week I am having a cooling issue. it is intermittent sometimes I get a water stream and the engine works perfect and other times I get no water for the cooling and it will start to over heat. If I pull the thermostats and put them back in then the cooling system works perfect. what am I missing?

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