Home › Forum › Ask A Member › 1970 Mercury 7.5hp › Re: 1970 Mercury 7.5hp
September 7, 2017 at 1:00 pm
#64462
A previous generation 9.8 or 6 hp donor motor should work. Not sure how far back you can go. There should be some powerheads around since the lower units were a bit weak. It’s probably a good idea to take your lower unit apart to make sure it’s in good condition before going through the trouble of swapping the ignition.