HD-15 Johnson final Update ? 😮
Seeing how it stayed running yesterday "out of water",
I took the prop off and threw it in the test tank.
Got it running long enough to take a video.
It sure sounds like it has an ignition problem to me.
Tried grounding out one spark plug at a time.
It’s hard to tell in the video, but it appeared that the
top cylinder is doing the most work. I later confirmed
that by touching the spark plug bases, and the top
plug was quite a bit warmer than the bottom.
I tried another new plug in the bottom cylinder, but
it ran the same….. crappy!
I didn’t see any water droplets on the plug when I
removed it. I tried running it on the top cylinder
with the bottom plug removed, with the idea of
holding up a cardboard to see if any water was blowing
out, but it wouldn’t stay running long enough on one
cylinder.
I seen no tracing of arcing on the mag plate when
I originally worked on it.
Ideas?
https://youtu.be/aPybyPCCht8
For now it’s sitting in the corner in "TIME OUT"!
Attachments:
Prepare to be boarded!