Issues with spark on 2001 Yamaha 90TLRZ

[RadJag87]

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!

[boscoe99]

Have you searched this website for an answer to your question?

Methinks someone many times has mentioned that the number two coil is triggered by the crank position sensor. Why are you focusing on the pulser coil?

I would test the CPS, the charge coil, the pulser coil, and their wiring to the CDI to verify everything is within specification.

[RadJag87]

Thank you, I greatly appreciate your help!

[robert graham]

Check fuel pump for bad diaphragm causing raw fuel/wet plug fouling....worth a look-see before going further into electricals