Having issues reaching top speed and full RPMs on my 2002 Honda Aquatrax F12x. The ski will top out around 55 mph and at 5800 rpms (when previously it would hit 64 mph and 6500 rpms). This ski only has 50 hours on it and its in immaculate condition. I have checked the oil, swapped plugs (twice), inspected the turbo and wastegate, installed new WGS. The ski will hit full RPM when turning in circles under full throttle, but the RPMs spike back and forth between 5800 and 6500 RPMs (see my other video).
Any help is greatly appreciated!
![](https://i.ytimg.com/vi/WPKXcCKet9g/mqdefault.jpg)