Issues with spark on 2001 Yamaha 90TLRZ

RadJag

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Jun 15, 2016
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The last time I was out, I suffered a noticeable loss of power and could not get on plane. I checked my fuel filters, cleaned the carbs, changed to spark plugs, but I am still having issues. I found that my top and bottom plugs were getting a spark, but nothing to the middle (and the bottom was weaker). I swapped ignition coils to make sure that wasn't the issue, so that can be crossed off the list. At this point, I am thinking it is the CDI Powerpack or the pulse. How would I determine which is causing the issue? Are there other potential culprits I could be overlooking?

Thanks for your time and advice!
 
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