Call me an idiot for asking this question, but does the standard Happy Time style magneto have enough power to run "two" CDI's and naturally "two" sparkplugs?
Interesting thought. My approach would be to unwind both the white and blue winding, counting the number of turns on the blue one. Purchase enough magnet wire of the same size as the blue, and make two CDI windings.
Then there would be the problem of drilling and tapping for a second sparkplug... Likely a job for a machine shop.
You must be psychic as you're obviously reading my mind.
The notion of running CDI and sparkplug redundancy has always been on my mind, not to mention more consistant combustion, just like the Rotax 2-stroke 582 aero engines.
A side benefit, is to be able to run two sparkplugs with slightly different heat ranges.
This would be quite handy with the jetting i'm currently running.
A side benefit, is to be able to run two sparkplugs with slightly different heat ranges.
This would be quite handy with the jetting i'm currently running.
That would do as long as one plug was not so hot as to cause detonation, but then the compression ratio on an HT may be so low that detonation isn't possible.
An experiment could be done... Try a second CDI wired to the original coil with a sparkplug dangling from it. There is a slight chance that the original coil could handle two CDI.
After a brisk 2 mile ride to warm the engine, I connected a second CDI.
The idle slowly dropped a little I guess because of the added load, but then it settled nicely. The idle was as smooth as it has always been. Disconnecting the second CDI made the idle speed up again to where it was.