2011 Kawasaki KFX450R Review

13 Май 2015 | Author: | Комментарии к записи 2011 Kawasaki KFX450R Review отключены
Kawasaki KFX 450 R

About the KFX450R

At the heart of the KFX is a liquid cooled, four-… that was originally borrowed Kawasaki’s 2008 KX450F bike then slightly to perform more ideally in an ATV The four valve double cam features titanium valves and valve spring trainers the valve train light for efficient and reliable operation at RPMs.

Its lightweight forged features a compression ratio of which requires the use of premium gas or better. The engine is brought to by push button electric Kawasaki offers a kick-start kit for … hard racers, but we stick with the ease of thumb starts.

Digital injection is Kawasaki’s fuel method of choice for the KFX. allows the machine to start easily in cold weather and more efficiently at higher The 32-bit fuel injection features a 42mm throttle The system measures coolant air intake temperature, air intake engine speed and throttle then automatically delivers the amount of air and fuel.

Being an loop system, meaning is no sensor measuring the exhaust the system is unable to compensate for modifications. Switching out the KFX’s and exhaust for something from the will require the use of an aftermarket management system. This is on all of today’s fuel injected One unique feature on the machines injection system is its choke/idle knob.

It is located on the side of the body and isn’t particularly to find the first time you for it. Using it on colder days starting nice and easy.

The features a five speed transmission. It is also the only produced 450 on the market with Some track riders it’s not worth the extra few to have reverse.

Of course they get hung up on a berm a turn their feelings may

The engine is housed in one of the gnarliest frames on the market. Kawasaki its beefy aluminum frame and sub-frame, to be both light and rigid for responsive handling and to maximum traction in corners due to frame flex. The front of the features a single box-tube frame rail. This the lower A-arms as closely as possible, allowing for the use of longer This results in a front end less bump steer.

chassis has proven to be one of the strongest in the class. Take it from us you want to have to tear your entire machine due to a frame.

Bolted to the frame are wing style A-arms up which are paired with reservoir-equipped KYB shocks delivering 8.5 of suspension travel. Many of the produced and leftover machines on the have around an inch travel up front, except the which has just a hair The front shocks feature wound springs providing a rate spring setup.

The KYB are extremely adjustable (preload, and rebound), which helps up for their mild shortcoming.

Out Kawasaki has installed a beautifully cast aluminum swingarm. The is designed with curved and rounded edges to reduce and unwanted fatigue – the result is a yet very strong component. The also features a concentric adjustment system with pinch bolts, making adjustments a breeze.

Along the swingarm the rear suspension of a linkage and KYB shock. The rear controls 10 full inches of travel and features preload, and low speed compression and rebound

Measuring 46.1 inches the KFX450R is very trail However many design work together to make it capable for the recreational rider or racer in stock trim. off the KFX sits low and squatted. The engine is low in the frame to help provide a low of gravity.

The coolant is mounted low in the front of the and the battery was even moved low in front of the engine and its seat is also impressively low at 30.9

Stopping power comes of hydraulic disc brakes and rear. Up front dual calipers slow 183mm The back end features a single caliper that binds a pedal-style rotor, which reduce unsprung weight and is to help keep the rear pads cleaner and working efficiently.

Acceleration and braking are transferred to the ground by 20×7-10 front and 20×10-9 inch Dunlop tires. These are on high quality aluminum The rear rims feature rings providing superior and further enhance rigidity.

In the the KFX comes pretty well including a top-notch Renthal handlebar. The mounting hardware can be allowing you to move the handlebar or back a bit. The levers are nice quality and the front lever has an adjustable reach.

The lever features a quick system, which can be a big help you need to adjust your in the middle of a race. We found the brake lever gets in the way of the adjustment barrel a bit, but you can around it or if you are a racer, simply the parking brake.

The seat features a grippy material on top and material on the sides. This you to stay planted on the seat acceleration or braking while you to move around more while standing and gripping the KFX the sides of your knees. As for the it features removable front and fender extensions – a nice

Along with its 46.1-inch and low 30.9-inch seat height, the has a compact wheelbase of 49.4 it has a fuel capacity of 2.6 gallons and a wet weight of 392.5 pounds.

We arrived at Horseshoe Bend MX one a 60-degree sunny Saturday to put the KFX through its paces. It fires up without the need to touch the button. Starts are pretty as long as you don’t push the as the machine will not start the throttle depressed.

Once the engine springs to life a quiet roar thanks to its yet neighbor-friendly exhaust. We found the to emit very little noise and immediately became with the sound of the engine.

the clutch out for the first time we its action light and smooth. around getting the feeling for the we discovered the machine’s good torque. The KFX puts out as good or low end power then the other machines on the market. This is a plus in case you find exiting a turn a gear or have to pull a steep right out of a corner.

Although is a track test this is a big for trail riders and woods

You don’t want to get carried lugging it, this is a 450 not a 700. If you to take full advantage of the it takes a few more RPMs. As our increased we were greeted by a surge of midrange power and is where the Kawi gets of its work accomplished. As you reach the midrange the KFX reaches its sweet in the rev range.

The strong midrange it a lot of fun to hammer up Horseshoe’s larger

Power begins to taper off as you the upper RPMs. As the engine in the top of the midrange you grab the next and let her rip. While the KFX doesn’t have the top end of the Can-Am DS 450 or Yamaha it has considerably stronger bottom end a stock DS and not constantly revving engine to redline will help it last.

Its broad easy to use power it easy to get around the motocross Its good low end and strong midrange this machine easier to for novice to intermediate level 450 and it is only a few bolt-on parts from being a 50-horsepower

Kawasaki KFX 450 R
Kawasaki KFX 450 R

Shifting on the KFX is very smooth as is its action. The gears seem spaced helping make that power is always Although we were playing the of motocrossers who don’t need it sure came in handy in the pits.

In our opinion the KFX has the smoothest reverse system of any sport

Despite its narrower width, proved to be super stable. It may not be 50 wide but its low center of gravity, stance and low seat height all to the KFX having little body Pinning the throttle out of turns you can feel how rigid the chassis is.

really adds to the chassis a very responsive feeling.

is nice and light but at times the KFX can just a bit too responsive. The front end can a bit darty in stock trim. is due to the fact that the arms virtually no caster. The less an ATV has the faster it turns. This compounded while braking through bumps.

As the front compressed things happen faster. At this point inputs from the handlebar a more dramatic effect and to things more difficult the tires don’t hook up well, resulting in the feeling the front end is all over the place.

handling is a great thing, the KFX needs a little setup to the nervous feeling and take of its handling qualities. First, we the toe in to parallel. Stock it was toed out a half inch. Next we front preload from 1/8 of an to 1/2 and we backed the rebound out a few clicks to keep the front end riding under heavy braking.

These changes alone quite a bit. If you are skilled to purchase a 450, you should be enough to tune it to extract the available performance from it.

In trim the KFX lands well jumps but felt a bit harsh braking and acceleration bumps. We some preload to the rear and sped up the rebound a few clicks to keep the rear suspension pacing. By the time we finished with our suspension the ride had dramatically and we hadn’t spent a on aftermarket suspension.

With our dialed in the machine still did a job of landing from jumps and did a better job of isolating the rider deep acceleration and braking The KFX shocks are extremely adjustable so advantage of it!

We aren’t particularly with the stock tire They don’t hook up especially up front and they a tendency to bounce through sections. It contributes to the front-end nervous and makes the suspension to dial in. We tried a set of Kenda GNCC tires to see what they might make. they weren’t motocross they are lower profile stock, don’t bounce the stock tires and offer better front-end control.

the same size as stock they wouldn’t require us to our machine’s gearing. They a huge difference in directional mad made the overall handling better.

While some wheelbase sport machines can to get light in the nose launching off of the KFX flies straight and true to good weight balance and a low of gravity. Leaving the lip of jumps the KFX you up for success unless you make a big with your body If you do get out of shape in the air the KFX feels very so mid-flight corrections are easy for pilots.

The KFX450’s cockpit is compact feeling too cramped. If you are near tall switching the handlebar around and removing the front extensions affords you more More vertically challenged should really like the layout.

We found the seat to be a bit which on trail rides can be On the track, however, it makes the KFX to move around on. For a motocross we may leave the seat foam We like the stock seat which works as advertised good traction for sitting and the to move around while One of our test riders last felt the pegs were a bit too

If you are taller and share this it can easily be fixed with a set of nerf bars. The Kawasaki’s are superb. The Renthal handlebar is of high quality, the levers great and the throttle shape and are comfy and light.

Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R
Kawasaki KFX 450 R


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