ser. 5433123 no idle Half throttle Falls on its face
rebuilt the fuel pump/new screen
all new fuel hoses / dump carbs
new three way valve
check the stator good need help
I HAVE A MERCURY 150 HP, v 6 CYLINDER. THE SERIAL NUMBER IS 5433123, CAN YOU TELL ME THE MODEL YEAR? the gay working on my motor said the cal. was changed he think it is 175 or 200 hp