73 50hp johnson

Discussion in 'Bubba's Outboards' started by shawn 314, May 3, 2009.

  1. shawn 314

    shawn 314 New Member

    Messages:
    148
    State:
    st. louis
    do any of you know what the compression should be on a 1973 50hp johnson?
     
  2. Bubbakat

    Bubbakat New Member

    Messages:
    4,532
    State:
    McMinnvill
    Any thing from 90 or above will suffice as long as there is no more then 10 lbs between cylinders. The cylinders need to be pretty close to run even and the higher the number the easier it is to start.