cdi module

Hi all, I am new to the forum and new to sea doo ownership. I bought 2 sea doos and a trailer that were sitting near a tree that was struck by lightning. 95xp and 96 gti. I know that with most vehicles with cdi boxes that the cdi is usually the problem. I had a Polaris that I was able to run...

I have a 96 GTX that runs like a jet fighter sometimes - then putts along like a Piper Cub. This is intermittent and can not be predicted. When I brought it into my local shop (Deep Creek, MD) they rebuilt the carbs. for $450. That didn't fix the problem so they then told me it was the CDI...