Thanks for the links. I had no idea magnetos like these exists. You mentioned that it doesn’t power USBs , but I’m guessing it’ll work well for lights right?CDI
BBR Tuning Volt Master High Performance Racing CDI (Stage 1)
Tired of your engine not starting every time you need it to? Need a more consistent spark than that stock CDI's giving you? Increase your spark and finally fix the timing issue most CDI's have with the BBR Tuning Volt Master High Performance Racing CDI (Stage 1). The reason most engines don't...www.bikeberry.com
Coil I use - note: this coil,s 12v will NOT power USB propperly only other coil will the cheap one I mentioned
BBR Tuning 12v High Performance 2-Stroke Stator Magneto
Tired of running the lights and accessories of your motorized bike off batteries? If you've always wanted to run an accessory off of your 2-stroke bike engine like mopeds and motorcycles can, you want the BBR Tuning 12v High Performance 2-stroke Stator Magneto. While this magneto will give you a...www.bikeberry.com
Not disputing the rest of your post but typing paper is about.003 thick and the larger wire will decrease the voltage and increase the current available.You need a full wave rectifier to capture both halves of the wave. Yours is probably a single phase that simply cuts off one half to make the current behave like DC. I've used ignition coils as lighting coils and they work fine with a full wave rectifier. You can rewind with heavier copper wire to bump the output. The home made coil on my 79cc Predator runs an 1165 LED headlight bulb, LED tail light, LED brake light, and a 6 volt moped horn. You have to space the poles of the laminated core .001 of an inch from the magnet. I use a standard business card which is about .001 thick, plus it takes on the contour of the flywheel when adjusting the spacing.
In addition to what Dennis suggests, the core should have multiple steel plates with insulators between each layer. The wiring should have an insulated coating (lacquer) and it should be wound on a non-conducting material like tape where it contacts the core. I took moped lighting coils apart to figure out how to reverse engineer them. Good luck on your upgrade.