First of all THANKS for great igniton
I mounted it on my 125ccm 4T tuned up Zhonsen engine (154 series) gokart for competitions and get great results - onliest thing I had to do - change magnet hold down place - to get signal at 75deg BTDC in this case I can get spark at 60deg BTDC @8000RPM and great results it spins up to 13000 (still in third gear) and then I set limiter - 1deg BTDC
But I found few "mistakes" at CDI for scooters http://www.electronics.gompy.net/cdiscoot/index.html
1. Com-TTL with com power doesn't works on few of my computers (not positive sigal from PC)
2. problems with R11 5k/1w - i put 4,7k/2w and it is still too less - 5w required @13000
3. in start I got spark @75deg btdc (moment of sensor) - I had to remove R6, D2 but it still starting good by kickstart with compression of 18Bar
4. I also get multispark (2 sparks) but then I put diode 1N4148 in line of Pickupcoil anode to resistor.
Now it works fine
For next competition I am planning to rebuild CDI to battery powered to remove rotating mass (aprox 1kg) - flywheel - and place there hall sensor with lightweight plate
P.S. Gompy I found tacho also in your homepage - can you help me to rebuild it to more rpms? (up to 15000?) to use together with your CDI sinal from PIC pin6 Maybe there you can add LED for shiftlight? and make it as one nearly perfect DIY system