weak spark

Hey, i got a Seadoo XP 800 that randomly stops or/and stops when i hit a wave. there is also weak spark. its also starts right up on land but in water its pretty hard to get it started.

So my 96 was giving me issues last season of bogging on throttle up once warmed up. So this year I decided to rebuild the carbs, grey hoses replaced last year. Once I did this and reinstalled, the ski fired right up and all appeared good. Battery was weak so I put it on a charge for the...

Ok guys I have a problem. I searched the forum for weak spark but really didn't much info. I see where many have mentioned they have no spark but a weak spark is what I have. The 96 xp ran great for the day but as my son was starting to load it on the trailer it quit and would not start again...