The new 2008 Suzuki KingQuad 750AXi  atv has no problem powering you around, over, or through any trail riding obstacles.

If big isn’t big enough, then you’re thinking just like Suzuki. For 2008 the company took its largest ’07 machine, the KingQuad 700 atv, and made it even larger. Though the physical size remains relatively unchanged, the motor size has grown to 722cc and the largest KingQuad atv in the family is now named the 750AXi. Suzuki’s claim that this new KingQuad 750 atv “is designed to be not only the best all-around sport/utility ATV currently made, but the best QuadRunner atv Suzuki has ever manufactured” is a bold one indeed. In this review the test riders break down the details for you and let you know what they found after having put it through an extensive testing period.

 
Chassis.

Starting at the frame, Suzuki engineered a high-tensile steel frame and also gave special attention to the delicate balance between rigidity and light weight in order to help maintain a balance between optimal chassis performance and a comfortable ride. The 750 AXi also utilizes a fully independent rear suspension (IRS) to maintain maximum ground clearance and offer a plush ride. A large-diameter sway bar was also used in the rear end to maximize performance. Both the front and rear utilize dual A-arm setups and come with five-position preload-adjustable shock absorbers. In the front, you get 7.1 inches of wheel travel, with 8.1 inches in the rear. Getting the KingQuad to come to a screeching halt is accomplished by two 200mm-diameter front brake rotors squeezed by a new-design, single-piston caliper made for strong, reliable braking performance. Out back you’ll find a sealed multi-disc system that utilizes a clutch-type design to help increase durability while lowering required maintenance and reducing unsprung weight. Out on the corners, newly designed pressed-aluminum wheels with black-painted rims are used to help reduce unsprung weight for a more positive suspension feel. The Dunlop tires mounted on the rims also feature a new tread pattern designed to optimize traction while maintaining a comfortable ride. Looking at the 750 AXi from a “dying rat’s-eye” view (from the bottom), you’ll find the complete undercarriage lined with polyethylene skid plates to help protect your investment, with minimal sliding resistance when gliding over rocks and deep terrain.
Wrapping up the package is the standard KingQuad styled plastic, available in red, a very dark green or Advantage Max-4 HD, a pattern exclusive to Suzuki. To comfortably fit your “assets”, Suzuki provides a T-shaped seat with a tapered design that allows for a maximum amount of rider mobility and comfort. The seat also comes with a very thick padding for maximum support.

 
Engine.

The most notable change to the largest KingQuad atv is the increase in displacement. Who among us ever stops searching for just a “little bit more” power? This displacement bump should cure those who just couldn’t get enough out of the 700. The new 722cc, DOHC, single-cylinder motor is designed with a broad powerband, durability being one of its primary focuses. The cylinder is canted 48 degrees from vertical in order to lower the center of gravity, engine height and seat height. Another major benefit of this design is to allow a little extra room for the fuel injection components to fit into the limited amount of space available. The Suzuki EFI (electronic fuel injection) helps to maximize fuel efficiency, make start-ups easier and improve throttle response. The cylinder head utilizes large, 36mm intake valves and straight intake ports to help increase efficiency. The cams are semi-gear-driven to help reduce some of the overall size of the head. The aluminum cylinder is plated with Suzuki’s special “Plasma-Spray Cylinder Coating”, which allows Suzuki to run without installing a heavy steel sleeve, helping to improve resistance to heat buildup and damaging friction. The piston is a forged aluminum unit that uses an L-shaped top compression ring for increased ring seal and flutter resistance. The transmission is a CVT-type automatic with a fender-mounted gear selector. This gear shifter is one of the easiest to use in the class. Simply slide the shifter through the track until you get to the gear you want, let it rest in that position and go. Shifting selections are: high and low, in the forward direction, reverse and neutral. Going from 2WD to 4WD is as simple as pushing a button with your right thumb and away you go. If you need the differential locked in, that same right thumb flips the lever and you’re off. If we had any complaint about this system, it was that we found that although the differential lock lever has a very nice contoured surface, a rider wearing heavy winter gloves with have a difficult time flipping the switch because of the contoured surface unless he pulls his gloves off. With light gloves, however, it was no problem. Without the differential locked, the KingQuad 750 utilizes a compact torque sensing mechanism to initiate a limited-slip differential. Both the intake and the airbox are mounted up very high on the machine, which is quite convenient in case you end up in really deep water. The airbox and air filters are very simple to access, much like the spin-on oil filter that helps simplify the chore of oil changes. To get to the airbox, pluck out two push-tabs and you can remove the cover; remove one thumb screw and you can take off the air filter. The filter element offers the best of both worlds in that it’s a pleated paper-style filter that utilizes a foam wrap to trap the major debris. The body design is laid out so that both the rider and the motor stay very clean, no matter the conditions. The seat is removable without any tools so you can easily access the major electronics and your spare tool kit. There are also simple-to-remove access covers so you can fill / check important fluid levels easily. Storage is plentiful, with a nice-sized box in the back and a sealed compartment with a large, screw-on cover in the front fender.

Basic Features.

The KingQuad 750AXi atv comes with a very nice LCD display that shows you almost everything (expect a notice from your wife to come in from playing because dinner is ready!). The easy-to-read display includes speedometer (mph or kph), odometer, dual trip meters, a clock, fuel gauge, gear indicator and drive indicator (2WD or 4WD). Right next to the LCD display are a couple of LED lights to indicate neutral, reverse, differential lock in 4WD and a water temperature warning in case things start getting too hot. One bonus feature is that Suzuki designed the electrical system with a high-output magneto generator and a very large, 18-amp battery to help provide extra power for cold-weather starts and any of the add-ons we all like to get after the initial purchase, like a snow plow or winch—speaking of which, if you’re thinking of adding a plow or winch, the stock front bumper has the perfect location designed into it to allow easy installation for just those attachments. In case you need a 12V/120W accessory outlet (comparable to the cigarette lighter outlet in a car), Suzuki provides it standard on the front right fender so you can power a GPS or other electrical device. The massive fuel tank holds 4.6 gallons and is positioned so that the center of gravity is as low as possible. The fuel fill cap is on the rear fender, right next to the seat and is a ratchet style cap. The location of the fill cap is nice, because in the event of a spill you won’t have fuel running over your seat or—even worse--dripping onto the engine. The 750 AXi atv is also graced with rugged steel racks on the front and rear that have a wrinkle-style paint finish that is durable and hides scratches well. On the underside the KingQuad is very well protected with full body skidplates and there are plastic guards and skids in all major locations, such as those that protect the CV boots.

 
Test Rider's Reviews.
The standard ATV testing procedure is to use the vehicle in every conceivable way the test riders believe the average atv rider would use it—and even in some ways they hope the average rider wouldn’t use it—in order to find out what the machine is really capable of, where its strengths are and where its weaknesses are. During the break-in cycle, for example, this atv revealed two things--the KingQuad 750 atv starts better than almost any machine on the market and the EFI allows it to idle beautifully, letting you warm the machine up easily without having to stand next to it and babysit it while it gets up to operating temperature.
The IRS works better on the KingQuad 750AXi than almost any other machine in its class. Like any IRS, the ground clearance is phenomenal and straddling rocks and debris is a breeze. The suspension is very soft and plush, which makes for a great ride, but stiff enough when you add weight to the racks that the handling won’t be compromised. Between the IRS and good suspension settings, the KingQuad is very nimble and fun to ride through the forest or on the trails.
As stated earlier, the EFI on this atv makes for a great idling machine, but it also makes for excellent throttle response while offering a very light throttle push. The shifter that gets the KingQuad atv in motion is one of the simplest to use in its class and worked flawlessly. Power was never an issue at any point in the test, for either work or play. In an effort to work the KingQuad atv a bit, they hooked onto some downed timber when out cutting wood one day to see if it would slide the trunk out of the woods and were pleasantly surprised that the KingQuad skidded out the timber with ease. Remember, however, the manufacturer has set limits for pulling or towing, and they don’t recommend exceeding--just because it has a hitch doesn’t mean you can pull anything with it! The combination of the larger motor and CVT transmission put all the power you could ever need to the ground to get the work done.
When it came time to play, the KingQuad atv was among the favorite machines the test riders had out that day. The excessive amounts of power would allow you to loft the front end over logs if they got in the way or climb almost any hill that got between you and were you wanted to go.
The KingQuad 750AXi never came up short according to all the test riders no matter what they trew at this monster atv. If there was something that they had asked it to do, it did it and had more left to give. The power was exceptional, while the handling was unmatched. Suzuki hit the bullseye with the newly improved KingQuad 750AXi atv.