Kawasaki KFX 400 Specs, Price and Review

Kawasaki KFX 400 Specs, Price and Review

You have arrived at the right place if you are looking for information about the Kawasaki KFX 400 sports bike, such as its price, features, overall dimensions and weight, and evaluations given by previous purchasers.

Our team’s inquiries to multiple Kawasaki affiliates and agents verified this information. Let’s discuss the price of the Kawasaki KFX 400 as well as its features and user reviews.

One of Kawasaki’s underrated motorcycles, the KFX 400, was among the first four-wheelers to introduce 4-stroke power mills, revolutionizing the ATV business. Unbeknownst to many, this opened the door for modern sports quads that dominate the racing scene.

Kawasaki KFX 400

The KFX 400, an often-overlooked motorcycle from Kawasaki, was one of the first four-wheelers to introduce 4-stroke power mills, ushering in a new era in the ATV business. To the surprise of many, this opened the path for the modern sport quads that dominate the racing circuit today.

Since then, the KFX 400 may have lost ground. But it unquestionably takes the lead thanks to its contributions to 450-cc speed demons. Continue reading to find out more about this four-wheeler.

Kawasaki KFX 400 Models

Kawasaki KFX 400 Models

This series only produced four models from 2003 to 2006 when the KFX 400 was discontinued. The first 4×4 came from the Suzuki DRZ400 dirt bike and had a smaller carb, cam, and CDI with a gentler curve and lower rpm limit. This arrangement delivered highly useful power, but it didn’t maximize the quad’s capability.

The four-power wheelers increased dramatically after the 2005 cam and carburetor modifications by Kawasaki. The KFX 400 became a high-performance ATV for dirt roads, trails, and sandbanks after these improvements.

Kawasaki KFX 400 price

The below table shows the list price of all Kawasaki KSF400 models released from 2003 to 2006:

2003 Kawasaki KFX 400 KSF400A1 list price $5699 but now Retail/Trade-In Values is $1,625 – $2,560

2004 Kawasaki KFX 400 KSF400A2 list price was $5699 but now the Retail/Trade- in Value is $1,755 – $2,890

2006 Kawasaki KFX 400 KSF400A6F list price was $5699 But now the Retail/trade-in value is $2,025 – $3,305

Kawasaki KFX 400 Specs & Features


This 400-class motorcycle’s 36-mm Mikuni carburetor was later swapped out for a 37-mm CV-style carb with TPS to enhance throttle responsiveness.

This updated carburetor with higher lift intake and exhaust cams for the 2005 Kawasaki KFX 400 let the DOHC engine breathe more deeply and increase mid-to-top-end power.

Engine Type4-Stroke DOHC
Cylinder ArrangementSingle cylinder
Carburetion SystemCarburetor, Mikuni BSR36 SS x 1
Engine CoolingLiquid cooling
Bore x Stroke Ratio90 x 62.6 mm (3.543 x 2.465 in)
Compression Ratio11.3:1
Starting SystemElectric
Displacement398 cm³ / 24.3 in³
Maximum Power28-32 hp/28.4-32.4 PS (20.9-23.9 kW, estimated)
Top Speed65-85 mph (104.6-136.8 km/h) – owners’ claim
Air FiltrationPolyurethane foam element
LubricationDry sump
Engine Oil & Quantity2.1 US quarts w/ filter
2.2 US quarts w/out filter
2.3 US quarts at disassembly
SAE 10W-40 w/ API grade of SJ meeting JASO T903 MA
Other options: SAE 5W-30, 10W-30, 10W-50, 15W-40, 15W-50, 20W-50


he KFX400 features the ideal blend of power, handling, and suspension thanks to its chain-drive system and vibration-reducing counterbalancer.

The acceleration would be the one small issue if there were any. The vehicle’s peak speed is increased by the stock gearing, but its 0-60 time is not the quickest.

The machine is enjoyable to ride aside from it. With the clutch pushed in, you may start the vehicle in any gear. The left side of the handlebars has a clear view of the choke.

ClutchWet, multi-plate type
Transmission Type5-forward and 1-reverse
Gearshift Pattern1 down 4 up, foot-operated (forward); foot/hand-operated (reverse)
Drive SystemChain drive, RK 520KZO 96 links
Primary Ratio2.960 (74/25)
Final Drive Ratio2.857 (40/14)
Transmission Gear RatioLow – 2.538 (33/13)
2nd – 1.666 (30/18)
3rd – 1.238 (26/21)
4th – 1.000 (23/23)
Top – 0.846 (22/26)
Reverse – 2.153 (28/13)


The battery and fuses are securely tucked beneath the seat, and the ignition switch is mounted on the center pod. A Yuasa YUAM329BS YTX9-BS Battery (see on Amazon) or any other lithium, AGM, or gel model would be a perfect substitute if you need to switch out your standard batteries.

Just watch out for overcharging, which can create hydrogen that, in the presence of a spark or short circuit, might ignite a fire. Additionally, never swap your factory-installed maintenance-free batteries for a conventional one.

IgnitionElectronic CDI (Capacitor Discharge Ignition)
Ignition Timing10° BTDC @ 1,500 RPM
Spark Plug, GapNGK CR7E, DENSO U22ESR-N, gap (0.7-0.8 mm, 0.028-0.031 in)
Alternator TypeTriple-phase A.C. generator
Rated Output65V (AC) @ 5,000 RPM (no-load voltage)
Fuse20 Amp
Battery12V, 28.8 kC (8 Ah)/10 Hr, YTX9-BS formats
Battery Dimensions (L x W x H)150 x 87 x 105 mm (6 x 3.44 x 4.19 in)

Tires & Brakes

The combination of the 4×4’s wheels and tires allows for an effective braking system. Progressive braking does not involve death-clutching the brake levers in order to stop the vehicle. A further aid in keeping the four-wheeler firmly planted on the tracks is the additional grip provided by factory-installed rubber.

Front Tire, off-road/road air pressureTubeless Dunlop AT22 x 7-10, 27.58 kPa (0.28 kgf/cm2, 4 psi)
Rear Tire, off-road/road air pressureTubeless Dunlop AT20 x 10-9, 34.57 kPa (0.35 kgf/cm2, 5 psi)
Front Brake TypeDual hydraulic discs w/ twin-piston calipers
Rear Brake TypeDisc brake


The handlebars of the KFX 400 are unaffected by high-speed acceleration or bump absorption. It is simple to turn and accelerate through the trees. More aggressive riding and dry, hard packs expose the vehicle’s weakness and proclivity for body roll.

Frame TypeHigh-tensile tubular steel alloy
Caster, Trail8.5°, 36 mm (1.42 in)
Steering Angle41°
Turning Radius3.1 m (10.2 ft)
Front Suspension Type, TravelIndependent, double-wishbone, coil spring, oil damped (adjustable fork preload), 215 mm (8.5 in)
Rear Suspension Type, TravelAluminum swingarm-type, coil spring, oil damped (preload, rebound, and compression damping adjustable), 230 mm (9.1 in)


The KFX 400 has always been the lightest automobile in the 400-cc class. In order to maintain this condition, it had to replace the valve, clutch, and ignition covers with new magnesium covers, add an aluminum front bumper and rear grab bar and modify the shift lever with aluminum.

Length1,830 mm (72 in)
Width1,165 mm (45.9 in)
Height1,160 mm (45.7 in)
Seat Height (Unloaded)810 mm (31.9 in)
Ground Clearance265 mm (10.4 in)
Wheelbase1,245 mm (49 in)
Track (F/R)935 mm (36.8 in) / 910 mm (35.8 in)
Dry Weight169 Kg (373 lbs)
Vehicle Load Capacity Limit110 Kg (243 lbs)


Surprisingly, the machine had no instruments for a sport quad. Although it did not have an analog speedometer or odometer, it did come equipped with 12V 3W neutral, reverse, and coolant temperature warning lights.

Long trail rides require support, which is provided by footpegs perched above serrated footrests. The quad’s seating arrangement also fits riders of ordinary height as well as those who are higher.

The quad has improved light distribution thanks to its dual 30-watt headlights, 21-watt brake light, and 5-watt taillight.

Lime Green, Metallic Marble Red, and Blazing Orange are somebody panel color choices that lend some flare to the machine’s sexy appearance.

About Kawasaki

Kawasaki Heavy Industries, Ltd. was established in 1878 and has grown from being a part supplier for transportation companies to a significant figure in the ATV industry.

The company that makes the Kawasaki KFX400 is also renowned for its huge production of transit, hydraulic machinery, motorcycles, off-road vehicles, side x sides, personal watercraft, aerospace and energy systems, as well as industry-leading motorsport vehicles.

Kawasaki KFX 400 Review

The Kawasaki KFX 400 is a sport quad all-terrain vehicle (ATV) that has been in production since 2003. It is equipped with a liquid-cooled, four-stroke engine generating approximately 39 horsepower.

The KFX 400 is renowned for its consistent and predictable power output, making it a suitable option for riders of all experience levels.

Furthermore, the KFX 400 offers a fully adjustable suspension, permitting riders to customize the handling to match their riding style and the terrain they’re on.

The ATV also boasts a lightweight yet robust frame, making it well-suited for aggressive riding.

For More Details Check Out The YouTube Video

Final Words

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