My brother has a 1973 85hp Johnson V-4 all 4 cyl. are between 63 and 65 psi
does this sound right? He said his mech. told him this is a low compression engine.
Engine starts but when he gives it gas it shuts off this happens when its in the water change fuel pumps,checked bulb stays hard,replaced fuel lines the only other thing i can think of is carbs. need rebuilding.