[franco]

I need advice. I have 2 waverunner xlt 800s 2004. I just picked them up from the dealer after winter storage. He prepped them including tune up etc. Both idle fine, but one unit will only go 38mph and rev at 5800 rpm.
The other unit is fine with speed over 50 and rpm at 7800.
Any ideas what causes the 38mph issue?

 

[GCwaverunner]

The electric power valve motor is probably faulty resulting in no movement from the power valves. You can check this by pressing the start button for about 2 seconds and then watching to see if the power valve cables are moving and also listening to the sound. Do it on your other ski first to hear what sound it makes. If it is working, remove the power valve caps and check they are actually operating as there is pins that can come out due to using synthetic or caster oil and clogging up the power valves. Let me know how you go!

 

[franco]

Thanks for the response. My dealer still had no idea. I will try this.