I'm also have trouble figuring out where the tube from the guage goes on the motor(1984 Johnson GT 150). This motor had a water pressure guage on the boat that it came off of and worked at one time, but I can't find where it was pluged into on the motor. It's not from the tell-tale and I can't see where it was T'ed into anywhere else. I'm confused. Where should I be looking or where should it be hooked up at on the motor?
Help please,
DJ



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