2006 SeaDoo Wake. Runs rough when revved and won't top 30mph.

[MTHancock]

Starts fine and runs great at low speeds. When I get it up to 20mph or so it sounds rough and will only go to 30mph.
My gauges are shot, so I don't know RPMs.
I've already changed plugs, disconnected/reconnected battery, and added fuel treatment and fresh gas to top it off.
It's not the (learning) key, as I have two keys and both behave the same. Thanks!



Thanks!

 

[Harbor master]

Have a similar problem with 2013 GTX 215. Super Chagers were rebuilt a year ago…Thinking I got some bad fuel. Anyone got suggestions about pumping / emptying out fuel tank?? Thanks.

 

[dcm0123]

Suggest you do not use anything which is electric or battery operated due to possible sparks.
Works excellent for changing the oil through the dipstick as well. Can also be used to dispense fluid under pressure.

https://www.amazon.com/Mityvac-Dispensing-Chemical-Resistant-Polyethylene-Quick-Drain/dp/B0002SR7TC/ref=sr_1_6?crid=3HRPPKD57MX32&dib=eyJ2IjoiMSJ9.S41bQJT_p2zH-qeKCm_CDSIoOZtBV9Wy5EeqseyPLrvjXjSvn2NDtdk6tVFy6t_i8-l52tM6UWQ0IpEuXQTTVNdpHjHf2QOLtQu5ip2tY_R-XJPFX7dlXmQFOQu6h4lFL-9DH_MyAXkksQ9_wLivePSoFEiiyyaoxv0CTBFydeyGtpx7xFqnxD6UAqFb3-Hho03THf_nt-vvfAL5KwEH6iL0WZkAJab4os1K5dc7lruXYh9FE7kLQRumeUOySaL6I5hFS3d-L7ZrRBD914w1_hy38rpyzz2FaAIub2glUPg.QHcO0OSVo9vlRAJDUvc4-y_X5BJEVyE_po5U316q1zg&dib_tag=se&keywords=oil+suction+pump+Mityvac&qid=1746920700&s=automotive&sprefix=oil+suction+pump+mityvac,automotive,112&sr=1-6&th=1

 

[kmarts]

could be 2 different problems.

If it's running fine at low speeds but tops out at 30MPH AND revs up, that's cavitation. Wear ring, prop, or ride plate related.

If it's only hitting 30MPH because the engine won't rev up and is running like garbage it could be many things. Start with the basics, fuel and spark and go from there.

The shop manuals typically have a troubleshooting chart based on the symptom.