I hope you had a great holiday season. Sadly, my 90 906 didn't. At the end of the season last year, the bike started back-firing through the carb and right exhaust. After some back yard diagnostics, I found I had intermittent spark at the one coil. I replaced it,fired it up and all was good.......then the bike shut off and hasn't re-started. I have no spark at either coil. NOT COOL. Any ideas of the culprit and an ignition system upgrade? Thanks for any input
![:thumbup: :thumbup:](./images/smilies/thumbsup.gif)