Reply To: Johnson 1949 HD 25 No Spark

[TiIngot]

Thank you for this information but this old 1949 has, what I believe, a very simplistic engine stop system and I don’t think it is my primary problem.  It’s just a secondary issue after I solve the no spark issue.

There is no modern stop button, switch, lanyard etc.  There are three wires coming off the points.  Two wires, one from magneto and one to condenser on one side and a third wire going from the points to the stop switch (It is actually an insulated bolt, meaning it is not grounded when outboard is running).

HD 25 outboard speed is controlled by a horizontal lever that moves left to right on the front of the outboard.  The lever performs three functions.  It advances and retards the magneto, controls the carburetor fuel output and moving the lever to the far-left position to “STOP” grounds the stop switch bolt.

I have disconnected the wires from the stop switch and taped the ends to isolate it from the magneto circuit.

I knew nothing about outboards until I started this project two weeks ago and have learned everything from this group.  It takes time when it is your first adventure, a lot of wheel spinning and head scratching.

Monday 16Jan26 my eBay parts arrive, and I will again be at my workbench.  Updates will come after then as I proceed.

Retired titanium melt shop manager. (Think about me next time you fly in a window seat and look at the engines spinning below the wings!)