Re: How do Atom Computer Ignition modules work?

[joesnuffy]

The weather wasn’t the best today but got about an hour of run time on the lake. This 1952 3hp Johnson twin motor is always in gear which makes it a good candidate for my tests.

Wide open to long slow troll speeds on a aluminum 14ft Starcraft 1965 boat allowed me to really dial in carb. The low speed needle was almost on the money the high end needle had to be ritchened slighlty not much compared to in the barrel tuning. Both needles had to be leaned a lot even in the barrel after the atom ignition was installed leading me to believe the motor is way more efficient. Also to be noted: I am using the original coils with new ignition wires.

I don’t think this motor has ever ran this well even New. From slow troll speed which was way lower than I have ever achieved with this motor/points and condensers to high rpms going back and forth with long slow speed idle runs she went to high speed quickly and no hesitation. Hoping to post videos soon.

I did pull the old champion plugs which were in motor for a long time and put a new set of NGKs in her this morning which allowed me to lean both needles a tad more in barrel.

In comparison to running her for a couple summers on our inflatable dingy with points and old champion plugs with the addition of electronic modules I dialed both the slow speed adjustment and high speed adjustment back significantly even in the barrel with old champion plugs. I run a racing synthetic oil. I couldn’t even smell the oil burning today almost made me think it was a 4 stroke. I wouldn’t doubt the engine has ever ran this well in its life.

I would like to thank Debe for his hard work and efforts.

I am currently working on a finished, tested, dependable module that I like an with minimal cost and dependability and ease of building which I will share.

Joe

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