"My 1975 70hp has a bad power
"My 1975 70hp has a bad power head, at least one piston is messed up. I bought the boat and the motor was thrown in on the deal. Has a good T/T unit and lower unit and all other parts are good. It was running but not very well. I have a chance of getting a 1980 upper unit with good compression and spark on all cylinders. My question is--will this match up with my 75 model. Either put my lower unit on the 1980 or the 1980 upper unit on my 1975 lower unit. Thanks in advance."
"My 1975 70hp has a bad power head, at least one piston is messed up. I bought the boat and the motor was thrown in on the deal. Has a good T/T unit and lower unit and all other parts are good. It was running but not very well. I have a chance of getting a 1980 upper unit with good compression and spark on all cylinders. My question is--will this match up with my 75 model. Either put my lower unit on the 1980 or the 1980 upper unit on my 1975 lower unit. Thanks in advance."