2012 Seadoo RXT- 260as hesitation while accelerating

[penepacker]

Hi everyone! Im new to the forum so any help is VERY MUCH APPRECIATED! I purchased a 2012 RXT-260as last August and first time out it ran good for the first hour or so and then when I would accelerate the RPM's would jump from appox. 2000-6000 RPM's. It would be a consistent up and down... a couple seconds at 2000 and then the same at 6000.. I changed the plugs and the next time out it seemed to be fixed (did not hesitate at all and we rode for hours). The next time out it started again but not until we were on our ride back after a few hours of riding. I took it back to the Seadoo dealer I purchased it from and they did ran both a diagnostic and a water test and of course it came back with no errors and they said it did not hesitate for them on the water test (this was my biggest concern). It is now winter here in Phila. so I put it away until spring but I have no idea what to do or where to take it to get fixed... It clearly has an issue. Please help!!

 

[Coastiejoe]

With the new 4-tech engines, it is very hard to work on them without a computer. One of the most common is the Candoo Pro. I have a low voltage battery causing me issues. Threw 6 IBR CODES. Bought the Candoo and figured it out on my own.

You may have a bad connection for the fuel pump or maybe a bad TPS But without the computer it will be hard to isolate the issue. For example, if it is the TPS, you MUST have the computer to reset the TPS no matter if you install a new one or the used one needs adjustment.


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[AircraftDoc]

Water in the fuel, maybe. The fuel with alcohol added attracts water vapor.
Try high octane fuel that is high quality and and guaranteed low to no alcohol.

This is why alcohol added auto fuel is not allowed in aircraft. Icing issues etc.

 

[penepacker]

Water in the fuel, maybe. The fuel with alcohol added attracts water vapor.
Try high octane fuel that is high quality and and guaranteed low to no alcohol.

This is why alcohol added auto fuel is not allowed in aircraft. Icing issues etc.

I did try that.. I put highest octane in it.

 

[3ftDeep]

I'd check the fuel injectors and fuel pump, focussing on the pump. This one might be tough to troubleshoot. Any way it could be losing fuel pressure (i.e. through a bad fuel line)?