RXP-X running rough and vibrating

[Cdb630]

I'm looking to get some advice on what may be wrong with my Seadoo. It's a 2015 Rxp-260. I tried to use it about a week ago and it was giving me trouble. I put it on the water, started it and idled it out of the no wake zone. Up until the point that I tried to open it up, it ran perfectly fine. When I gave it more throttle, it started to vibrate or knock violently and wouldn't go above 10-20 mph under full throttle. When I did give it throttle it would give me random bursts of power (25-35 mph). It starts perfectly fine, but I'm just lacking power and having the vibrating issue. I used it about a month before this and it ran perfectly fine. I drained the fuel that was in it and refueled, hoping that may make a difference but it didn't. I also inspected my intake and pump for any debris and could not find any. My next step is to change the spark plugs and fuel filter in the hopes that might make a difference. Any advice help. Thanks!

 

[RXTAS Rider]

Your on the right track, change those and report back if its still acting up.

 

[3ftDeep]

It really sounds like there's something stuck in your pump. I would double check that first.

 

[Coastiejoe]

I bet there was something In the pump and it came out when you pulled the ski. I'd change the plugs and filter for the mere fact they need changed. But I bet the issue is already solved.

If not, then the Carbon Seal is the next place to inspect.

 

[Cdb630]

I changed the spark plugs and it is running great! I put it on the water right before changing the plugs and it continued to misfire and vibrate. Went home and put the new plugs in and everything is fine now. Thanks!