2024 Kawasaki Ultra 310 X Review and Speed Test

It’s been a long time coming but we have finally got our hands on a 2024 Kawasaki Ultra 310, Kawasaki’s supercharged performance flagship Jet Ski.

The latest generation Kawasaki Ultra 310 was unveiled in late 2021, arrived in showrooms in limited numbers in 2022 during the global pandemic, and then deliveries started to ramp up through 2023 and 2024.

When it was unveiled in late 2021, this was the first major redesign of the supercharged Kawasaki Ultra Jet Ski in 14 years.

The Kawasaki Ultra 310 is powered by Kawasaki's familiar supercharged 1.5-litre four-cylinder engine with 310hp.

Its main rivals are the Sea-Doo GTX 300 (supercharged 1630cc three-cylinder with 300hp) and the Yamaha FX SVHO (supercharged 1.8-litre four-cylinder with an estimated 280hp).

In this video we will cover Australian and US pricing, go through all the key features, tell you what it’s like to ride – and do acceleration and top speed tests using precision VBox timing equipment.

0:00 Introduction
0:55 How new is it?
1:35 2025 colour schemes
2:00 Model tested
2:25 Engine details
2:48 Jet Ski rivals
3:03 US prices
3:32 Australian prices
3:55 Australian tech details
4:05 US tech details
4:20 Feature highlights
5:30 Storage compartments
7:00 New reverse trigger
8:00 Hull design
9:10 Fuel consumption
9:45 Acceleration tests
10:33 Results in km/h
10:45 Results in mph
11:56 Kawasaki vs Sea-Doo, Yamaha
12:12 Conclusion
13:05 Flushing maintenance
13:26 Fogging oil for supercharger
13:37 Summary

[fernandomartin]

Fantastic review I had a 2023 and still learned some stuff about it.

[Gmtail]

Dear Kawasaki, Please, I’m begging you. Fix the belt tensioner setup. It’s a great design, minus the fact that the bushing should be a stainless bearing, the idler pulley has no business being anything but stainless steel, and the tensioner shock needs to have proper sealed bushings that don’t seize. This has been an issue since its design that hasn’t changed since 2011. I get it, parts cost money but we aren’t talking a lot here. If you want insight on how to build it, look at Kawi Performance and take inspiration from their design. There is no excuse to leave it this way any longer, thank you.

[LifeBeginsOnTheWater]

Great review Joshua of the 2024 Kawasaki Ultra 310. I didn’t think that color scheme you were riding was an option on the 2024 310x? Thanks for sharing

[JuniorJr_]

I've had Yamahas and Seadoos. Maybe a Kawasaki in the future. Hard decision!

[i]

Here's my question, why do we only get a 1 year warranty in the states, and Australia gets a 5 year warranty?

[WhiteoutSnowy]

Kinda of hard to find for this model, plenty of 160’s tho

[ziadajam]

There’s a 2023 310 for 14k. Might have to get it

[Razorpee]

Why did I watch this video as if I don't already own this ski?

[davestange]

Didn't show all the play in steering. Also knob is locted in dumb spot. Broke it off second day out??

[joshowens]

I’m all for technology, and advancements. But a reverse camera on Jetski seems pretty pointless and less it enables you to not require a spotter while towing.

[russg]

They should make an X version without the supercharger. I like this more simple stripped down model but don't want a supercharger.

[ericsmith]

its got a kick ass hull for rough water and the roots SC is ultra responive but this is a decade old its time to innovate sea doo and yamaha is leaving kawi behind

[micah]

The acceleration tests are not accurate. Watch the video - boost averages ~13.5 psi, not 15+ psi.

My stock '23 Ultra 310x hit 15+ psi immediately and stayed there until the speed limiter engaged. Something is malfunctioning on your test machine, probably a boost leak.

[tompali]

Ooooor you buy a Sea-doo rxp-x 325, takes WAAAY less gas and top out at 130km/h and the price is the same.
built quality is top notch and you have a ton of accessorizes available.

[Ron-lg]

Imagine being able to afford a 30k toy.

[ericsmith]

so 3 more. mph top speed heavier and shitty fuel economy than my gp NA nah im good yamahas have their issues like the shitty paint but ill ecu flash mine and smoke the kawi with no SC