blown motorized bike carnage!

[Fabian]

How do you arrive at your "normal" spark retard? How are you sure you hit the "optimum" amount?

You just copy the reliability based on (2-stroke) research of Japanese manufacturers, which has been thoroughly analysed over a great number of years.
There is no need to go through the research process a 2nd or 3rd or 4th time because it's already been done and the results are in.

 

[thunderhead289]

great to hear that there is another cdi coming out from jag with more aggressive timing curves! i just want the total advance to match up better with the rpm. I can understand your viewpoint where with this greater advance, the less experienced would be blowing their stuff up.

anyway back to the original point of this thread, I have completed the rebuild of the bike finally.

here is the video of how to rebuild the top end and some interesting things I cam across in the process, enjoy!

https://www.youtube.com/watch?v=DYER7LGPq-s