If you've ever spent a Saturday morning wrestling an sxi 750 kawasaki through a choppy lake, you know exactly why people are still obsessed with this machine decades after it first hit the water. It isn't just a jet ski; it's a workout, a rush, and a bit of a mechanical puzzle all rolled into one. While the modern world of personal watercraft has moved toward massive, three-seater couches that basically drive themselves, the SXi represents a time when riding meant actually having to balance, aim, and hold on for dear life.
There is something special about the mid-90s era of Kawasaki stand-ups. They had finally moved past the underpowered 650s and were starting to figure out how to cram some real displacement into a hull that wasn't much bigger than a surfboard. The SXi was a pivotal moment in that evolution. It took the groundwork laid by the 750 SX and added that extra "i"—which, for those who weren't there, stood for the dual carburetors that changed the game for stock performance.
The Heart of the Machine: That 750 Twin
The engine is really where the story of the sxi 750 kawasaki begins. It's a 743cc vertical twin, and in the SXi configuration, it came from the factory with dual 38mm Keihin carbs. This was a big deal at the time. The previous single-carb versions were fine, but they always felt like they were gasping for air just when things were getting good.
When Kawasaki threw that second carb on there, the throttle response sharpened up significantly. You could actually feel the "hit" when you squeezed the trigger coming out of a buoy turn. It made the ski feel alive. Of course, more carbs meant more complexity, and if you talk to any long-time owner, they'll probably tell you a story about the "joy" of trying to sync them perfectly on a Friday night in a dimly lit garage. But when they are dialed in? Man, there isn't much that sounds better than a 750 twin screaming across glass-calm water at 6:00 AM.
Big Pin vs. Small Pin Engines
If you're looking to buy an sxi 750 kawasaki today, you'll hear people talk about "big pin" engines. For the uninitiated, this refers to the diameter of the piston wrist pin. The SXi models (specifically starting around 1995/1996) utilized the big pin motor, which is generally considered more robust and better for high-RPM builds. It's the engine everyone wants if they plan on doing more than just putting around the cove. It handles heat better and has a crank that can take a bit more of a beating.
Handling and the "Lean-In" Factor
One of the most polarizing things about the sxi 750 kawasaki is the hull. If you grew up riding a Yamaha SuperJet, the Kawasaki feels different. It's a "lean-in" hull. While a SuperJet likes to be flicked around and hopped, the 750 SXi wants to carve. It's wider and heavier than the older 650s, which makes it feel a bit more stable at high speeds but also means you have to work harder to get it to do sub-surface tricks or sharp stabs.
However, once you learn how to use your weight to bury that rail into the water, the SXi handles like it's on tracks. It's a fantastic racing ski. Even today, you'll see these things at vintage races holding their own against much newer tech. The added weight of the SXi hull actually helps it track through the chop better than some of the featherweight aftermarket hulls that just bounce off the top of every ripple.
Stability for the Rest of Us
Let's be honest: not everyone is a pro freestyler. For the average rider who just wants to go fast and maybe jump a few boat wakes, the sxi 750 kawasaki is a lot more forgiving than the "square nose" skis of the late 80s. It doesn't try to spit you off the moment you lose focus. It's still a stand-up, so you're going to fall—a lot—but the SXi gives you a fighting chance to stay upright while you're learning the ropes.
Living with an SXi: Maintenance and Quirks
Owning an older two-stroke jet ski is a lifestyle choice. It means you're probably going to have blue-tinted grease under your fingernails most of the summer. The sxi 750 kawasaki is generally reliable, but it has its quirks.
First off, the oil injection. If you find an SXi that still has the original oil injection system hooked up, most veterans will tell you to rip it out immediately. Those pumps are decades old now, and if a plastic gear fails, your engine is toast. Most of us just block off the pump and switch to premix. It's a bit of a pain to mix gas at the pump, but it's a lot cheaper than a full engine rebuild.
Then there's the cooling system. The 750s can run a bit hot if you're really pushing them, so many owners upgrade to a dual-cooling setup. It's a relatively simple mod that involves tapping the pump for an extra water line, but it makes a world of difference for the longevity of the top end.
The Culture of Modification
The beauty of the sxi 750 kawasaki is that it's like a LEGO set for adults. You can keep it bone stock and have a reliable, fun cruiser, or you can go down the rabbit hole of modifications.
A common "stage one" setup usually involves: * A Factory Pipe: This is the single biggest performance gain you can get. It changes the powerband entirely. * Aftermarket Impeller: Swapping the stock prop for something like a Skat-Trak or Solas will give you much better hook-up in the water. * Sponsons: If you find the ski is "sliding" too much in the turns, a set of bolt-on sponsons will make it bite like a shark.
The aftermarket support for these skis is still surprisingly strong. Whether you're looking for a new handle pole, a high-compression head, or just some fresh turf for the tray, you can still find parts easily. That's one of the reasons the resale value stays so high.
Why Buy One in 2024?
You might be wondering why anyone would bother with a 25-year-old sxi 750 kawasaki when they could just go buy a brand-new four-stroke stand-up. The answer usually comes down to two things: weight and soul.
Modern stand-ups are incredible machines, but they are huge. They're heavy, wide, and sometimes feel more like a small boat than a jet ski. The SXi is still small enough to be tossed into the back of a pickup truck by two guys. It's nimble. It's loud. It smells like burnt oil and adrenaline.
Also, there's the price point. While prices for used stand-ups have definitely climbed lately, you can still pick up a clean sxi 750 kawasaki for a fraction of the cost of a new unit. It's the perfect entry point for someone who wants to get into the sport without dropping five figures. Plus, you'll actually learn how to work on engines, which is a dying art these days.
Final Thoughts on a Legend
The sxi 750 kawasaki isn't just a relic of the 90s; it's a testament to a time when PWC manufacturers were taking big risks and focusing on pure rider engagement. It's a ski that demands your attention and rewards your effort. Whether you're screaming across a mirror-flat lake at sunset or trying to navigate the wake of a passing cabin cruiser, the SXi makes every second feel like an event.
If you find one for sale and the hull isn't cracked and the compression is good—buy it. Just make sure you've got a good life jacket and a garage shelf ready for some spare parts. You won't regret it.