All posts by Thierry

AC-CDI 16F628 v7.9

NEWS DEC.2018:Please update to the last version V79R16C0.Major correction for RPM below 1500RPMHuge improvement of precision. (10times better!) CHARACTERISTICS. Adaptable to other single-cylinder bikes. Accuracy (0.15°/8000RPM). Software source unavailable (only .HEX). Advance curve is in EEPROM and can be freely modify Need a working charging coil for the capacitor. Need a 6 or 12v battery DOWNLOAD PIC 16F628A 600 to 30000rpm Make the PCB: PCB Eagle v6 files Build .

AC-CDI ANALOG

v2.2 Characteristics. Easy to build. or ready to use in the SHOP. Advance curve slightly adjustable. Need a working charging coil for the capacitor. Don’t need a battery No rev-limiter DOWNLOAD AC-CDI Analog v2.2 To make the PCB PCB.pdf Parts list To build the CDI Schematic.pdf components.jpg To wire the CDI Wiring HowTo hock this CDI on Yamaha XT600 Printed Circuit Boards and Ready to use CDI are available .

Pickup Simulator v3

Design to simulate a pickup coil at different RPM to test CDIs, Tachometers, Power valves and ignition coils. Range: from  300 to 30000 RPM (V2.x) Range: from 1000 to 30000 RPM (V3.3)   Download. Simulator v2.3 Software Schematic Parts list Circuit board Eagle files PIC-LCD-DAC pinouts PIC 16F628A .HEX .PDF .TXT .PDF .JPG .SCH .BRD .TXTLCD datasheet Version 2.3 is free to use, versions 3 are only available for .

AC-CDI 16F628 v6.7

This version is discontinued. Consider to build v7 instead! Characteristics. Adaptable to other single-cylinder bikes. High precision (0.07 degree). Preprogrammed for XT400/550/2strokes (84 or 106 points). Software source unavailable (only .HEX). Need a working charging coil for the capacitor. Need a battery DOWNLOAD PIC 16F628A v6.7   1500 to 40000rpm To make the PCB PCB Eagle v6 files To build the CDI Schematic Partlist To burn the PIC Softwares .

AC-CDI Honda XR400

ADAPTATION to fit a Honda XR250 / XR400R Done by   Characteristics Based on AC-CDI PIC16f84 v5.4 For single. 1 advance curve. No kickback.   Introduction Andrew has build a AC-CDI for his 2002 XR400R. Mains changes are: – He use a 2.2uf 380v capacitor, and the same configuration of the rectifier diodes he saw into the original cdi. – No battery is used and the cdi is directly .
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