......fuses?
I too have the same boat. What a nice boat. You'll come to love your VTS for planning the boat out, either at WOT or when pulling a tuber....most other Seadoo jet boats do not have this feature.
You are blowing the fuse on the system thats all up front, side by side...so, like timmyboy said, you need to move those wires around and look for one being pinced or grounded.