jet problem

[Brian 232]

Hi all,
I have a 2006 sx230ho. Last outing things were fine, then the right thrust changed. as I throttled up the engine seemed to "disengage" for lack of a better word. The engine was running fine, but it seemed to rev with no resistance (much faster than the left engine.) I have checked the intake under the boat and the nozzle. There was a very small amount of grass wrapped around the shaft, but it was truly miniscule. At slow speeds I didn't notice any issues, but under increasing power is seemed to slip for lack of a better word. It was like back in my rodding days when an automatic tranny was slipping. It was pushing, but not much.
Any help or insight would be appreciated.

 

[David Martin]

Sounds like clavation it can either be the prop and the blades might be damaged or the clean out plug is allowing water to bypass the gasket that seals the plug in the tube. Hopefully these 2 will cover it...........after that its a lot more serious like engine coupler or drive shaft splines are stripping ect.........both of those require some serious work.

 

[HangOutdoors]

Really look through the pump. Sounds like something is in there.

 

[Cobra Jet Steering LLC]

some trash is probably between the impeller blades it takes just a small amount to cause cavitation and that is what you are describing

 

[itsdgm]

You’re describing a classic case of cavitation. Did you remove the grass that was around the shaft? Still same result? its possible that something that small can cause your issue.

 

[Brian 232]

Thanks for all your help fellas. I ran an endoscope through the jet and it looks like I got it all cleaned out. I will have it back in the water Saturday so I will know then.