Info Manual

Ever wonder whats inside an OEM DC-CDI of kawasaki,
I got time to open up one just for all of my readers, with my step by step on how i did it without messing up the circuitry of the igniter. At first before i opened up this little black box. The Unit is covered with rubber epoxy and sometimes hardened epoxy to  avoid malfunction from moist and vibration of the motorcycle.

i tried not to mess up with the casing, unfortunately it didnt work for me, the plastic case is too brittle. slowly i chipped the casing with a diagonal cutter starting from the top cover. After hours doing the case thing. ,








The rubber epoxy will be exposed and time to strip it away so that the components of the board will be visible like this.
I used bamboo stick, (do not use hard pointed objects on clearing this epoxy, we do not know where the components are and might get damage by it)..so better yet use stick. ( i did not use any solvent to strip this...i need the entire board intact and the semiconductors un damage...

I was inspired to make and test a programmable cdi on my bench to see how it works realtime. By creating a simulator that will produce both a pulse and the speed of the output, to vary the spark at a certain RPM, we can determine if the cdi under test do have a LIMIT.

(thanks to sir thierry of france with this, he inspired me more to fully understand everything.)

Photo shown is a homemade DC-CDI,  got it from a site, more on that later.

The picture shows an OEM dc-cdi of a Suzuki shogun 125cc that prior on my recent posting about kawasaki OEM dc-cdi, they are almost identical, parts used are almost exactly the same although in a different layout and or placement on the PCB. However, i recently found out the two dc-cdi differs on the design of their HV generator.


Digital DC-CDI by the way uses microprocessor on the pulse shaping circuit to maintain integrity and reliability of giving out right timing all the time when the spark plug will fire the combustible material inside the combustion, it is also to where the ignition map of the engine is stored for accurate timing. Many OEM uses MCU specific for their design and no available datasheet for us to understand it fully. This OEM upon analyzing the entire board has an Rx, Tx, and ground port, and if only i have the datasheet of the IC, perhaps we can be able to extract the data and dump it to a computer for further enhancement.