2016 MODEL INFORMATION

Transcription

1 2016 MODEL INFORMATION MODEL NAME KX250F MARKETING CODE KX250Z Version: 2 June 2015 Canadian model may not be exactly as shown. 1

2 CONCEPT AND ADVANTAGES CHAMPION PERFORMANCE The KX design philosophy to put midlevel to expert riders on the top step of the podium has not changed since the brand was launched over 40 years ago. The KX250F is perhaps the most successful racer in the extremely competitive 4-stroke 250cc class. It has a long history of winning, including dual championships in 2011, and the 250MX championship in Adding to its highly acclaimed engine and chassis performance, numerous industry firsts and advanced technology makes the model the most potent KX250F yet. 2

3 CONCEPT AND ADVANTAGES Best Performance in its Class Dominant engine performance: Dual Injectors & straight-flow intake Fine atomising downstream injector: increased low-mid power and sharper response. Race-based performance: bridged-box bottom piston Reinforced light and strong design Advanced suspension technology: Separate Function front Fork (SFF) Type 2 Function divided: - Right: Spring - Left: Damping Assembly Large ø48 mm inner tubes contribute to great fork rigidity and a planted feel from the front wheel Ultra-low friction contributes to extremely smooth action Lightweight construction Preload adjuster equipped Holeshot Advantage: Launch Control Mode AMA factory racer-spec system gives riders an edge when starting in low-grip conditions. Easy engine tuning: DFI Setting Data Selection Easy access to 3 engine maps Oversized petal disc Large front disc: enhanced braking power and controllability Adjustable Ergonomics Precise engine tuning: Factory-spec KX FI Calibration Kit (option) Slim, lightweight aluminium perimeter frame 4-position handlebar 2-position footpegs 3

4 KEY FEATURES Slim aluminium perimeter frame - P.13,18 Aluminium perimeter frame is a lightweight construction composed of forged, extruded and cast parts. Slim design contributes to racer-friendly ergonomics. Setting-adjustable motocross ECU - P.10 Slim, racer-friendly rider interface - P.18 Slim frame, minimalist bodywork and a flat tank-seat line were designed to make it easier for racers to go fast. DFI Setting Data Selection - P.9 Using the provided DFI couplers, riders can quickly and easily access their choice of three maps (standard, hard, soft) provided in the ECU. Launch Control Mode - P.8 Factory-style launch control system increases the chance of getting a good start by helping riders maximise traction when starting on a slippery surface. Adjustable handlebar position - P.18 A choice of four positions allows riders to tailor their riding position. Factory-style Renthal handlebar and pad come standard. Lightweight ECU was designed specifically to withstand the rigors of motocross racing. ECU contains three engine maps (plus a fourth for Launch Control Mode). Settings for the three maps can be reprogrammed with the optional KX FI Calibration Kit. PN cc liquid-cooled, 4-stroke Single with Dual Injectors - P.5 The use of the world s first dual injectors for a production motocrosser is a key component of the KX250F s highly acclaimed fuel-injected performance. The KX250F engine s direct-flow intake further contributes to high-rpm power. Tuned for high performance, its high-revving character is complemented by superb response. Factory-inspired tuning - P.12 A works-base bridged-box bottom piston (used for the first time on a mass-production motocrosser on the 2010 KX250F) is just one of many features inspired by our factory racers. Progressive throttle link - P.7 Lightweight ø43 mm throttle body uses two shafts joined by a progressive link to give sharp response and excellent power feeling. New Uni-Trak rear suspension - P.17 Linkage mounts below the swingarm for more precise suspension tuning. Dual compression adjustability offers a wide range of tuning options. Self-lubricating alumite coating on the tank cylinder improves wear resistance and shock action. Adjustable footpeg position - P.18 Riders can choose from two positions to suit body size and preference. Factory styling - P.21 Complementing the factorystyle design and graphics, black alumite 1 rims, black fork guards, green highlights help create a distinctive Kawasaki identity. Green alumite 1 finish on the suspension adjusters and green finish on some of the engine trim add to the KX250F s highperformance image. Separate Function front Fork (SFF) Type 2 - P.14 Used for the first time on a mass-production motocrosser on the 2011 KX250F, the SFF locates its damping assembly in the left fork tube and a spring in the right. ø48 mm fork tubes and works-style internal construction contribute to a planted feel at the front, increased damping performance and ride comfort, greater bottoming resistance, and increased stability when on the brakes or when landing jumps. Race-ready front suspension - P.16 Super-hard titanium coating (unique in this class) protects the fork from wear abrasion. Selflubricating alumite coating creates a hard, lowfriction surface on the outer tube, protecting the aluminium surface and further reducing friction to promote smooth fork action. Petal brake discs - P.20 Factory-style front and rear petal brake discs offer strong braking performance, excellent control and high-quality sporty looks. Oversized 270 mm front disc further enhances controllability. 4

5 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING POWERFUL, HIGH-REVVING DUAL-INJECTION ENGINE WITH FACTORY-STYLE TUNING Tuned to best suit race-experienced riders, the 249cc liquid-cooled, 4-stroke Single s wide powerband focuses on high-rpm performance and extends way into the over-rev. Highly acclaimed for its high output and smooth power delivery (thanks to the world s first dual injection for motocrossers, a direct-flow intake, and race-inspired tuning and parts like the high-performance bridged-box bottom piston) and Launch Control Mode. 5

6 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING Next-level Power: Dual injectors and straight-flow intake routing Complementing the highly acclaimed power offered by the KX250F s dual injectors a world s first for motocrossers on the 2012 model and direct intake routing, superb FI response ensures smooth delivery. * The KX250F fuel injection system features dual injectors: an injector downstream of the throttle valve (where injectors are located on standard FI systems), and a second, upstream injector located close to the airbox. (Illustration A) A * The upstream injector s greater distance from the combustion chamber gives the fuel particles and intake air more time to mix, as well as allowing the mixture to cool before entering the combustion chamber, both of which contribute to more efficient filling. * Wide intake porting and a straight intake tract allow air to flow directly from the air cleaner box into the combustion chamber. The arrangement contributes to strong high-rpm performance. * To ensure the high-rpm engine s demand for a high flow of gas in a short period is met, both injectors feature larger holes than those used on the KX450F. Fuel flow is about 20% greater than on the KX450F. * Both injectors are fine atomising injectors with 4 holes, dispersing spray particles with a droplet size of 120 μm for the upstream injector, and 75 μm for the downstream injector. The downstream injector s finer droplet size and wider spray angle contribute to stronger low-mid range power feeling, improved response and quicker acceleration. (Photo 1) * Unlike the dual injection found on supersport models (where the upper injector operates only part-time, providing additional fuel when necessary), the two injectors in the KX250F fuel injection system have different roles. The downstream injector is used to ensure smooth, instant response while the upstream injector is charged with providing power. As rpm and throttle position increase, primary operation switches from the downstream injector to the upstream injector. (Depending on whether in a low (1st, 2nd) or high (3rd, 4th, 5th) gear, the switch is gradual or almost instantaneous.). Downstream Injector Upstream Injector 1 6

7 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING * The ø43 mm throttle body makes use of a progressive throttle link to deliver airflow in much the same way as would a FCR carburettor. Using two linked shafts, the throttle body opens more quickly after the 3/8 open position, delivering sharp response and excellent power feeling. (Photo 2) 2 * The compact, lightweight ECU, located just in front of the steering head (behind the number plate), was designed specifically for motocross use. To help cope with the shocks and vibrations of motocross riding, the fuel pump relay is built in to the ECU. * Fuel pump, located in the fuel tank, is a lightweight aluminium construction. * To ensure a stable fuel supply during vigorous motocross riding, the fuel pump features a unitised plastic fuel filter cover that wraps around the inlet port and acts as a fuel trap. (Unitising the filter cover, changing its material from rubber to plastic and eliminating the fuel return hose from the pressure regulator contribute to weight reduction.) * Designed specifically for motocrossers, the fuel injection system incorporates a small lightweight ECU and operates without a battery to further eliminate unnecessary weight. And of course, fuel injection eliminates the need to adjust engine settings to suit track and climate conditions. * Ensuring quick starting without a battery was a prime directive for the KX fuel injection system. Using only electricity generated by the kick starter, the engine can be started with only three rotations of the crankshaft. The system delivers electricity in the following order: 1) ECU, 2) fuel pump, 3) injector. With a warm engine, starting can be accomplished in a single kick. 7

8 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING The holeshot advantage: Launch Control Mode KX motocrossers have long drawn on works technology to offer riders the best possible performance right out of the box. Launch Control Mode is just one of the factory features that give riders an edge when lining up at the start gate. * The KX250F features a launch control system similar to that on our factory racers. With the simple press of a button, riders can activate a separate engine map designed to ensure efficient race starts in slippery conditions. (The Launch Control Mode map retards ignition timing, allowing tires to gain grip in lowtraction situations, and allowing riders to focus on their lines.) (Illustration B) B * Even for top-level riders, controlling the hard-hitting power of a 250cc-class motocrosser off the start requires a high degree of throttle control and clutch finesse. By slightly reducing this power, Launch Control Mode helps riders maximise traction, increasing the chance of getting a good start. * To activate Launch Control Mode riders depress the launch control button (for two seconds or more), located at the left handle. (When activated, the indicator lamp next to the button will flash quickly to let the rider know it is on.) (Photo 3) 3 * Launch Control Mode has the greatest effect within the first few seconds of releasing the clutch off the start. This is the most crucial time for riders to get ahead of their rivals so they are better positioned going into the first corner. * Launch Control Mode works in 1st and 2nd gear (and Neutral). Once the rider shifts into 3rd gear, the system is automatically disengaged, switching back to the normal engine map. * System designed to the same specifications as that of our AMA factory racers. 8

9 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING Easy engine tuning: DFI Setting Data Selection (3 map choices) Adjusting engine settings to suit conditions has never been easier than with the KX s DFI couplers. Plug-and-play style system is quick, easy and stress-free. Soft Standard Hard * Instead of a single engine map, the ECU features three (four, counting the Launch Control Mode map). * Initial settings for the three maps are: Standard, Hard (conditions) and Soft (conditions). Using provided DFI couplers, riders are able to easily switch between the three maps to suit riding conditions. Plugging in each of the 4-pin couplers activates the corresponding engine map. (Plug is conveniently located on the right side of the head pipe for easy access without having to remove any parts.) * Each of the three maps can be reprogrammed using the optional KX FI Calibration Kit. (Please see below.) 9

10 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING Precision engine tuning: KX FI Calibration Kit (option) The KX FI Calibration Kit is the same kit used by Kawasaki s works teams in the U.S. The kit enables expert riders to adjust engine characteristics (by rewriting actual data maps) to suit their preference, record riding data, and analyse their riding data to further fine-tune their settings. most sample maps offered in industry only data logging function in industry choice of display * The KX FI Calibration Kit (PN ) contains KX Racing software, an ECU controller, mounting equipment and dampers and a USB cable. In addition to the kit, some model-specific parts (available separately), a PC and 12 V battery are all that is required. (Photo 4) 4 * While the kit is designed to satisfy racers and expert riders, it is simple and hassle-free to use: - the ECU controller mounts behind the number plate for easy access - accessing the ECU is accomplished simply by connecting to a PC via the ECU controller using a USB cable (no additional switches are necessary) - setting adjustments can be prepared in advance on a PC, or done when connected to the ECU - the kit s user-interface is simple to understand and easy to use * The KX FI Calibration Kit contains seven preset settings that can be quickly and easily used to adjust the ECU to suit track conditions. The provided settings are shown below. SETTING DESCRIPTION Richer fuel setting fuelling 5% richer than stock Leaner fuel setting fuelling 5% leaner than stock Advanced ignition setting ignition advanced 3 o from stock Retarded ignition setting ignition retarded 3 o from stock Hard riding surface setting ignition retarded, fuelling richer Controller sub-harness USB cable Software CD-ROM Power supply harness ECU mounting bracket (replacement part for use with kit) Controller bracket ECU controller Wire harness clamp Controller bands Upper/lower controller dampers Controller damper Soft riding surface setting Beginner setting ignition retarded, fuelling richer engine power suppressed: ignition retarded, fuelling richer Part is model-specific (KX450F, KX250F require different parts) and sold separately 10

11 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING * For more advanced setting optimisation, the ECU maps for volume of fuel injected (via the FI adjustment window) and ignition timing (via the IG adjustment window) can be adjusted for given throttle position and rpm. * Both click-and-drag (using the graph window) and numerical editing (using the map sheet) are possible. * When connected to the ECU, the KX FI Calibration Kit can be used to display the status of a running engine. Information can be displayed in numeric form using the Data Monitor, or in visual form using the various display options offered by the Data Meter. Data Monitor Window Base settings are shown as a flat graph (left). Settings can be increased or decreased from the base according to rider preference (right). * Multiple display options are available. Click [3D Graph] or [2D Graph] of the [3D/2D] to select the 3 or 2-dimensional display. When you use the [3D Graph], select [Surface Display] or [Frame Display] of the [3D Graph Type] to select the display type. Data Meter Window * The KX FI Calibration Kit can also be used as a data logger, recording up to six hours of data depending on the number of parameters (engine rpm, angle of throttle opening, etc) being recorded. After riding, the riding data can be viewed using the [Analyze] window. Parameters to be recorded and displayed can be selected independently. * The logged data can be lined up with the course layout to check actual riding, enabling more efficient FI settings to be determined. It also enables before-and-after comparisons and comparisons between riders. * Kit is compatible with both 64-bit operating systems (such as Windows 7) and 32-bit systems (Windows 7, XP, Vista). 3D Surface Display 3D Frame Display M Y K X F M O D E L I N F O R M AT I O N 2D Graph Display For more detailed information on use and functions of the FI Calibration Kit, please refer to the KX FI Calibration Kit Instruction Manual. 11

12 POWERFUL, HIGH-REVVING DUAL INJECTION ENGINE WITH FACTORY-STYLE TUNING Factory tuning and other performance-oriented engine characteristics * The engine was tuned such that the torque curve follows the limit of running resistance for as long as possible. (Unchecked, engine torque can exceed this limit, resulting in wheel spin, which does nothing to help forward momentum.) * Efforts were made to achieve the widest possible torque band, so that traction efficiency would be maximised for a greater part of the rev range. * High-performance piston, featuring the same design used on our factory racers, contributes to improved performance at all rpm. A short skirt, reinforced external ribs and the use of a bridged-box bottom, featuring internal bracing, result in a lighter, stronger piston. (Photo 5) * Thick under-surface and thick reinforcing external ribs add to piston durability. * Tin plating and striation on the piston outer surface ensure good wear resistance and oil retention for minimal sliding friction. 5 * Cylinder bores are nickel-plated, which offers stronger plating adhesion to suit the high engine power. * Lightweight titanium valves (IN: 31 mm; EX: 25 mm) reduce reciprocating weight and offer high-rpm reliability. The ultra-light valves have extremely thin valve stems on par with those found in supersport machines. The intake valves feature thicker heads for increased strength and both intake and exhaust valves are formed from a highly rigid, titanium material. * Spark plug protrudes deeply into the combustion chamber, contributing to combustion efficiency. * Crank web design increases offsetting moment for a high crankshaft balance factor. At approximately 60%, the balance factor of the 15 KX250F is on par with our factory racers. The high balance factor contributes to reduced engine vibration, smoother power delivery and increased performance in the mid-high rpm range. * Magneto rotor with a greater inertia (9.5 kg. cm 2 ) matches the acceleration performance. * 32 mm thick, mm wide radiators with wide fin and tube pitch offer resistance to mud build-up while maintain cooling performance. * Large openings in the radiator shrouds promote airflow, contributing to cooling performance. * Sprocket-style chain drive roller helps smooth engine braking by reducing the effect of driveline lash when the rider gets off the gas quickly and play in the lower side of the chain suddenly tightens. The additional control facilitates corner entry. 12

13 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING The KX250F s slim aluminium perimeter frame is a lightweight construction composed of forged, extruded and cast parts. Chassis balance and settings were all set to suit race-experienced riders. The centre of gravity and key dimensions (swingarm pivot, output sprocket and rear axle locations) were chosen so that the rear tire would drive the bike forward (instead of causing it to squat). Acclaimed for its high-speed stability, the chassis is complemented by its Separate Function front Fork (SFF), which offers greatly reduced friction that contributes to increased riding comfort and improved suspension performance. For 2015, revised settings for both the front and rear suspension offer increased riding stability and damping force, improved handling at high speed and improved absorption performance when landing jumps. 13

14 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING Race-ready suspension: SFF Type 2 The KX250F was the first mass-production motocrosser to feature Showa s Separate Function front Fork (SFF), which separates damping and shock absorption duties: > Left fork tube: damping assembly > Right fork tube: spring The configuration offers both smooth action and firm damping performance a combination difficult to achieve with a conventional fork. * Using large ø48 mm inner tubes contributes to greater fork rigidity, resulting in a more planted feel from the front wheel. * With only one spring, the friction generated between the spring(s) and fork inner tube(s) is greatly reduced (approximately 25% less), resulting in extremely smooth action throughout the fork stroke. (Illustrations C, D) * Being able to use larger damper pistons not only enables smoother action, it also makes firm damping performance possible. C D 14

15 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING * The large diameter fork tubes enable larger damper components. Main piston ø30 mm Sub-piston ø35 mm With the larger components, the same damping force as the ø47 mm SFF Type 1 can be achieved with a lower internal pressure. With the lower pressure, the ø48 mm SFF Type 2 is even better equipped to offer both increased riding comfort and firmer damping performance. * Removing the damper assembly from the right fork tube frees up space for a preload adjuster. Having a preload adjuster greater simplifies the task of setting fork preload or front height. (With a conventional fork, only the rear could be adjusted easily; adjusting the front required fork tubes to be disassembled and the use of collars and special tools. With SFF, both the front and rear preload/ height can be set quickly and easily.) (Photo 14) 14 Adjust preload Adjust damping Change spring rate MAINTENANCE JOB Collars needed Remove & disassemble Special tools Places Remove fork Disassemble Number of springs Conventional Fork SFF * SFF offers improved left/right balance, which greatly enhances handling. Locating the heavy spring in the right tube (and finetuning the left and right tube strength) better offsets the previously unbalanced weight of the brake caliper and disc on the left side. * A restrictor added on the damper assembly side and a joint rod comp added on the spring side ensure that a natural character is maintained. Placement of the restrictor can be used to change damping characteristics; it contributes to idealised damping character. The joint rod comp ensures even left/right damping force and contributes to ideal fork rigidity. Y Y Y 4 x2 x2 2 Adjust via dial 2 x1 1 * In addition to preload adjustment, the racer-friendly SFF also facilitates other maintenance chores like adjusting damping and changing springs. 15

16 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING * SFF Type 2 inverts the joint rod comp, positioning the cylinder at the top of the fork and the rod pipe at the bottom. (On SFF Type 1, this arrangement was reversed.) The Type 2 arrangement enables both ride comfort and bottoming resistance to be achieved. (Illustration E) > With the SFF Type 1 arrangement, increasing the volume of oil at the bottom of the fork produced a linear increase in damping force. So increasing damping force to increase bottoming resistance meant sacrificing ride quality at the initial part of the stroke. > With the SFF Type 2 arrangement, increasing the volume of oil at the bottom of the fork produces a more progressive increase in damping force, enabling bottoming resistance to be increased without sacrificing ride quality. E * The inverted joint rod comp arrangement and larger components made possible by the larger-diameter inner tubes increase rigidity (especially in the right tube), resulting in a more even rigidity balance between the left and right fork tubes. The more closely matched rigidity gives the left and right tubes more similar flex characteristics, resulting in increased handling stability under hard braking and when landing jumps. * A super-hard titanium coating on the outer surface of the inner fork tubes helps prevent wear abrasion. The increased surface hardness of the dark navy blue coating also helps to prevent scratches and damage to the tubes. Because the surface remains smooth for a longer period, sliding friction (and stiction) is reduced and action is improved, contributing to a smoother ride. (The KX250F is the only motocrosser in its class to feature this race-ready coating standard.) (Photo 15) Self-lubricating alumite coating Ti coating 15 16

17 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING * A self-lubricating alumite coating creates a hard, low-friction surface on the outer tubes. The hard coating helps prevent wear abrasion on the inside of the tubes, ensuring the sliding surfaces remain smooth for a long time, while the outside is protected against corrosion. The lubricating material in the coat contributes to smoother suspension action (especially at the initial part of the stroke) and a better ride feel. * Revisions in 2015 to the valve settings result in stronger damping. The firmer settings result in improved high-speed handling, greater ride stability and improved performance when landing jumps. Race-ready rear suspension * The rear shock features dual compression adjustability, allowing high-speed and low-speed damping to be tuned separately. (Photo 16) * A self-lubricating alumite coating on the tank cylinder helps prevent wear abrasion, and reduces friction for smoother suspension action. 16 * Like the fork, revised valve settings in 2015 result in stronger damping. The firmer settings result in improved high-speed handling, greater ride stability and improved performance when landing jumps. * The New Uni-Trak rear suspension system mounts the suspension arm below the swingarm, allowing a longer rear suspension stroke. The longer stroke in turn allows more precise rear suspension tuning. * Extensive rider testing was conducted to determine the ideal linkage ratios and rear shock absorber damping settings to achieve maximum rear wheel traction. 17

18 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING Slim, adjustable rider interface The KX250F s frame and minimalist bodywork, designed with rider ergonomics in mind, offer a slim rider interface and racer-friendly ergonomics. Complemented by new adjustable handle and footpeg positions, the natural riding position makes it even easier for racers to go fast. * Upper triple clamp with two sets of handle mount slots and reversible handle mounts offers riders a choice of four handle positions to choose from: 25 mm FWD, 15 mm FWD, STD and 10 mm BK. (Illustration F) F * Adjustable footpeg brackets enable riders to lower their footpeg position 5 mm. In the lower position, centre of gravity is lowered as is the rider s point of view, adding to both physical and psychological stability. (Illustration G) G * The frame is narrow across the main pipes, contributing to a slim package with good ergonomics. The slim riding position facilitates control. 18

19 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING * The flat design of the tank and seat gives the rider greater freedom of movement when changing riding position, and facilitates sitting farther forward. (Photo 17) * Minimalist shrouds were designed to be small and are slim where they come in contact with the rider s legs. 2-tone design was achieved using a double-injection moulding process. * Minimalist side covers were also made as small as possible. 17 * Seams between the shrouds, seat and side covers are very flush, which facilitates control as well as moving around on the bike. * The frame widens at the ankles to offer the rider better grip and narrows near the bend below the seat to allow a slim riding position. * Wide (front-to-rear) footpegs designed to offer grip and superb feel at the pegs. * The clutch cable boot features a large quick adjuster, making it easier for riders to adjust play in the clutch cable. * Throttle grip has a unitised collar. The one-piece unit provides additional stability during throttle operation. * Lightweight grips feature a grip pattern designed to provide both excellent grip and superior cushioning for riders hands. * The seat uses a slip-resistant top surface for good grip when seated and smooth sides for excellent rider mobility. Seat urethane helps maintain the original shape longer. (Photo 18) 18 19

20 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING Other race-oriented chassis components * Petal disc brakes are among the KX250F s numerous factory-style components. The stylish discs contribute to both sporty looks and a high-quality appearance. (Photos 19-20) * A factory-style Renthal (standardtype) aluminium handlebar is standard equipment. (Photo 21) 21 * Rib-less rear hub and butted spokes reduce unsprung weight. * Oversized semi-floating ø270 mm front disc contributes to stronger front brake force, but its real benefit is enhanced controllability. * Complementing the large-diameter discs, a pushrod-type front brake master cylinder and front brake pads with a high coefficient of friction deliver strong braking force and superb control (especially for the initial bite and initial-mid stroke characteristics). * Rear caliper guard protects the caliper from damage. * Dunlop tires contribute to great straight-line stability. 20

21 HIGH-SPEED CHASSIS WITH FACTORY-STYLE COMPONENTS AND TUNING Factory styling The KX250F s minimalist bodywork, fender and number plate designs ensure it is the sharpest looking bike in the paddock. Factorystyle graphics further reflect the KX250F s highly tuned performance. * Green highlights on the suspension adjusters and engine oil cap and generator cover plugs contribute to a distinctive Kawasaki look. * Green finish on the oil cap and the two plugs on the generator cover further contribute to factory looks. * Rims are coated in black alumite 1 just like our factory racers. (Photo 22) 22 * Embossed design on the clutch cover designed to gradually appear as contact from riding boots wears off the paint. (Photo 25) 25 * Fork and rear shock adjusters have a green alumite 1 finish like our U.S. factory racers. (Photos 23-24) * Engine covers are finished in silver paint, further reinforcing the KX250F s factory image. * Factory-style graphics complement the KX250F s highly tuned performance. 21

22 ADDITIONAL FEATURES Engine * Silencer construction (which varies slightly by market) ensures that respective noise regulations are met. Chassis * The alloy swingarm uses a cast front section, tapered hydroformed spars and forged chain adjusters. * Large synthetic skid plate offers great protection with minimum weight. Other * Optional engine parts include magneto rotors with different inertias (8.5, 9.0 kg.cm 2 ; STD: 9.5 kg.cm 2 ) and a 12T output sprocket (STD: 13T). * Optional chassis parts include handlebar holders for a ø28.6 mm bar (STD: ø22.2 mm), aluminium and steel rear sprockets (48-52T; STD: 50T), solid petal brake rotors for wet races, and different springs for the front fork (9.0, 9.2, 9.4, 9.6, 9.8, 10.0 N/mm; STD: 9.6 N/mm) and rear shock (49, 51, 53, 55 N/mm; STD: 53 N/mm). * An FI indicator lamp (available as an option) warns of any problem with the FI system. 22

23 COLOUR(S) * Lime Green with factory-style graphics 1 Alumite: an anodic oxidation finishing treatment for aluminium resulting in a coloured, corrosion/scratch-resistant film coating. 23

24 SPECIFICATIONS KX250ZGF ENGINE FRAME Type Displacement Bore and Stroke Compression ratio Valve system Fuel system Ignition Star ting Liquid-cooled, 4-stroke Single 249cc 77.0 x 53.6 mm 13.8:1 DOHC, 4 valves Fuel injection: ø43 mm x 1 (Keihin) with dual injection Digital DC-CDI Primary kick Type Wheel travel: front rear Tire: front rear Caster (rake) Trail Steering angle (left/right) Perimeter, aluminium 315 mm 310 mm 80/ M 100/ M 28.7 o mm 42 o / 42 o Lubrication Forced lubrication, semi-dry sump DRIVETRAIN SUSPENSION Transmission Final drive 5-speed Chain Front: Type ø48 mm inverted telescopic Separate Function front Fork (SFF) Type Primary reduction ratio Gear ratios: 1st 2nd 3rd (67/20) (30/14) (28/16) (26/18) Compression damping Rebound damping Spring preload 2 22-way 20-way 40-way 4th 5th Final reduction ratio Clutch (21/17) (23/22) (50/13) Wet multi-disc, manual Rear: Type Compression damping Rebound damping Spring preload New Uni-Trak 19-way (low-speed), 4 turns (high-speed) 22-way Fully adjustable 24

25 SPECIFICATIONS KX250ZGF BRAKES Front: Type Caliper Rear: Type Single semi-floating ø270 mm petal disc Dual-piston Single ø240 mm petal disc The specifications mentioned here apply to and have been achieved by production models under standard operating conditions. We intend only to give a fair description of the vehicle and its performance capabilities but these specifications may not apply to every machine supplied for sale. Kawasaki Heavy Industries, Ltd. reserves the right to alter specifications without prior notice. Equipment illustrated and specifications may vary to meet individual markets. To view our complete accessory catalogue visit: kawasaki.ca/accessories Caliper Single-piston DIMENSIONS Overall length 2,170 mm Overall width 820 mm Overall height 1,270 mm Wheelbase 1,475 mm Ground clearance 330 mm Seat height 945 mm Curb mass kg Fuel capacity 6.1 litres * Includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90% of capacity) and tool kit (if supplied) 25