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  1. J

    Question about changing a head gasket

    Do you need to take the powerhead off the mid section to change the head gasket on a 1973 johnson 50hp. does anyone know the sequence how they are tighten and the torque of the bolts. i notice the 4 bolts that bolts down the powerhead to the mid section. thanks
  2. J

    50hp johnson

    i have a question. i have my motor at a marina getting worked on and the question is they have the lower unit off the motor to change the impellor and went to test the water supply to the motor by putting a garden hose on the copper water pipe that runs up the mid section to the power head they...
  3. J

    Johnson 50hp Thermostat

    I have a 1973 johnson 50hp and i bought the termostat for it but when i pulled the termostat cover off i discovered that there was no thermostat or hi pressure value in the spots. someone before me removed them. do you recommend that i put new ones in or leave them out and just a new gasket...
  4. J

    1973 johnson 50hp sparks on buttom cylinder but not the top

    :confused:. I have a 1973 johnson 50hp that has 90 pounds of compression on both cylinders but only has spark on the buttom. does this motor have points and condensors or is it a cdi ign. this is the man. shift motor not the electric shift. the model number of the motor is 50ES73R. any useful...
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