Re: Testing timing of Red Atom Modules

[oldfogeyuk]

Sorry I don’t have a circuit specifcally for the Nova II, but I believe it’s a clone of the STENS MegaFire. There’s a circuit for that out in The Aether.
Fixed timing isn’t what I want, It’s what I’ve got with points, and it’s not ideal. I’ve been working to optimise the performance of this little old engine for two reasons: power, and economy/reduce emissions. I reckon if it’s pushing more water at the same throttle setting when I advance the timing from it’s current position, then it must be more efficient. As a result I can reduce the throttle and save fuel and reduce emissions.
I’ve already got a hghly polished set of points, correctly gapped, and a good condenser. No issues with that from an electrical point of view.
However, the timing is fixed. I started experimenting with the modules for the specific purpose of trying to gain some control over the timing, and that’s been quite enightening. The reason I need adjustable timing is to be able to advance it more at full throttle, and bring it back for a steady idle. As I’ve previously explained, I can’t get more advanced than 23 degrees without physically moving the magneto coil, but that’s a significant improvement on the static 15 degrees. I have read that the norm for a two stroke motorcycle is 30 degrees. Having discovered that the modules actually work the opposite way to what they were thought to, I’m considering using that to try to make them work "the right way" which means altering the circuit so that the timing actually advances with increasing speed, that’s why I tried out small inductors in series with R3. I’ll persist for while and report back what I come up with.
Big thanks to DB for the effort he’s put in too. I only we could find somebody with Green PInk and Purple modules to butcher we could have values for the full set.