2017 Kawaski Ultra 310x 50MPH problem

[Choppa83]

Hey all! I Have 2017 Kawasaki Ultra 310X bought it new 0Hrs, now at 31 Hrs ski wont go over 50MPH (6k RPM) and i have light grinding noise like bad bearing, gas has been use 93 V=Power shell from day one.
Before i start taking stuff off the ski just wanted to see if anyone has similar problem or can point me to right direction.
Thank you!

[Bucky STX-15F]

We probably need more information, my guess would be you picked up some debris while running your ski too close to the shore rocks, sticks etc. if the grinding noise is coming from the back of the ski I think that would make the most sense. However it’s where the engine is that’s a whole another animal.

[john belton]

Yep, get a bright flashlight and look into the Pump area. You are likely to find some debris caught on the impeller / Pump housing area. Get a long stick or modified coat hanger and fish that stuff out of there. JB

[Choppa83]

Pulled off jet pump today everything looks good prop/impeller is spinning freely so far what can i see looks clean in the back/outside the hull probable next step to check supercharge pulley tensioner. Do i have to pull engine to check hull/shaft bearing?
Thank you.

[Bucky STX-15F]

a little out of my area but sounds like it doesnt want to boost.
i have a TDI Beetle and it wouldnt go into boost and it shuddered like crazy. my issue was a bad MAF. good luck

[Choppa83]

Jet ski has been fixed, new spark plugs did the trick runs like new and i greased everything with Yamaha marine grease. Thank you and hope low speed limit problem i had helps someone (bad spark plugs).

[Choppa83]