Mason Pevey
Probationary User
Need some help guys. Swapped powerheads from a 2.4 1988 xr4 150 to a 2.5 1994 xr6 150. The water pressure gauge line in my old motor ran straight to the fitting in the top of the block between the heads. The new(to me) motors line has a 1/4 line coming out of that fitting in the top of the block going down to the bottom right of the block and it has a T fitting which is where the water pressure gauge hooks up. Problem is when I run the boat the needle on the gauge goes all the way around to 50psi and I know that’s not right. What’s the issue?