i have a 25hp johnson 1973. i've rebuilt carberator,changed ignition coil and cylinder coils, spark plugs,and all fuels lines and fuel pump. also a new fuel tank. engine runs good. after i stop running engine it will not start for 1.5 to 2 hrs. can anyone help with this problem. both cylinders have good compression. just seems like i'm missing something just can't figure out what it is.
