ignition

Hi, I hope someone can help me. Maybe one of you made some experiences with the kokusan ignitions. I have got a problem. I adapted a kokusan ignition from a KTM 520 exc to my 2002 Berg. It worked really good for 5-6 hours, yesterday on a race it failed. I think it has to do with the...

i have intermitant spark and mostly no spark, i would like this to be a easy starting machine. is there a part that normally goes bad, is there a better igntion out there.