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Magneto with lower inertial moment improves low-rpm response
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Rotor comes with rare-earth magnets – the unitized piece is small, lighter and more durable
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Connecting rod big-end bearing has more rigid cage for improved durability
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New intake port shape and revised cylinder skirt allow cooling air into the crankcase chamber
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Primary gear is now secured using a lock-nut to help reduce mechanical noise
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Metafoam gaskets for the generator and water pump covers improve sealing
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Right-hand engine cover provides a separate clutch cover for quick servicing without removing the water pump
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Assures greater reliability
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Bridges between intake and exhaust ports are machined finish for increased durability
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KIPS system varies exhaust port height for increased horsepower and torque
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Produces a broad powerband with more low-end torque while retaining excellent top-end power
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Breather added to KIPS cover to improve high-rpm and overrun performance
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Crescent slide carburetor puts the needle closer to the intake ports for excellent throttle response
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Adjustable for various conditions
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Clutch hub rides on needle bearings for smooth action
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Large clutch plates are 119mm in diameter for durability and control
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Clutch-release lever ratio provides light clutch lever action
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Thick clutch basket housing improves durability
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Clutch plate service cover simplifies maintenance and now utilizes a metal-carbon composite gasket
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Fifth and sixth gears on the input shaft ride on bushings for added reliability
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Positive shifting action and rugged durability
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Allows the engine’s full potential to be realized
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Provides oil level window
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Hard chrome-finished shift forks resist wear and seizure
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Same tubing material used on the KX™250
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Wide footpegs for better control, made of cast steel for strength
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Thick footpeg brackets withstand today’s rigorous tracks
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Engine and chassis bolts have rust-resistant coating
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Positioned in the frame to lower center of gravity and improve handling
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Features new graphics to match larger-displacement KX models
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Fitted with square inset nuts for secure mounting of shrouds and seat base
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Swingarm uses large cross-section beams for more rigidity and control
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Swingarm incorporates cast-aluminum drive chain adjuster sections for easy chain adjustments
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Flanged collars at the bearings to protect the seals from mud
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Fully adjustable shock with compression, rebound damping and spring preload adjustments
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Upper tubes are made of aluminum and are 49.5mm in diameter for excellent control and steering response
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Compression damping is 18-way adjustable
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Revised front brake lever shape offers better feel
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Forged-aluminum rear brake pedal is strong, lightweight and features two seals at the pivot for smooth operation
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Rear hub features two wheel bearings on the drive side of the hub for durability
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Thick spokes are used front and rear for stronger wheels, requiring less adjustment
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Light weight aluminum rims
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Two-tone seat pattern and graphics just like other KX models
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