"I have 2 1977 Johnson seahors
"I have 2 1977 Johnson seahorse 35 HP mdl#'s 35EL77C & 35EL77H, I just bought the 35EL77H. It runs strong, but when it was tested in the tank. The water that sprays out from below the powerhead would flow good at first. Then stops after a minute or two. Same...