Home › Forum › Ask A Member › Weak spark on 1973 20 Hp Johnson › Reply To: Weak spark on 1973 20 Hp Johnson
Yes, that 20hp model the seller described was probably produced and meant for an overseas market, perhaps Canadian. Although, I’m guessing this one was produced in Belgium. You won’t find these models listed on marineengine.com.
Is your latest picture of your current mag plate, or the one you purchased?
Install the new strange mag plate, hook it up, check the points/gap, then check it for spark. I will be surprised if it works, but most anything IS possible. I can only imagine this set up could work if wired one of two possible ways. Perhaps the driver coils are wired in series. Or, perhaps one lead on each driver coil is grounded to the mag plate.
Finally, does your flywheel have one, or two magnets, one on either side of the flywheel?