2011 Kawasaki KX 250 F Specs, Engine Features, Overview, and Video

Posted in Kawasaki, KX250F, Motorcycle on May 3rd, 2011 by jess

2011 Kawasaki KX 250FThe 2011 Kawasaki KX 250 F is a 232-pounds motocross, powered by a 249cc, liquid-cooled, four-stroke, single cylinder, DOHC engine.  New is the lightweight injection system comprising an ECU, 43 mm diameter throttle body, aluminum fuel pump and a single injector.  The piston crown is also reshaped to get achieve higher compression of 13.5:1.  Handling is light with the slim and rigid aluminum perimeter frame.  The suspension system has a race-oriented damping setting, Separate Function front Fork (SFF), and helps achieve good rear-wheel traction.  Other equipments of this dirt track-ready bike include slim urethane seat with slip-resistant surface that provides good grip, 50m wide footpegs, thick front fender, and black alumite-coated rims.

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2011 Suzuki RM-Z450 Specs, Engine Features, and Overview

Posted in Motorcycle, RM-Z450, Suzuki on April 17th, 2011 by jess

2011 Suzuki RM-Z450 The 2011 Suzuki RM-Z450 is a 249 lbs. FIM/AMA Supercross Championship winner off-road motocrosser, motored by a 449 cc water-cooled single cylinder DOHC engine.  It uses 5-speed constant mesh gearbox with a light clutch pull. Performance is consistent across fast laps, the torque chart shows a slight down movement off the bottom before climbing to the mid-range and strats to sign off at around 7500 rpm. Handling offers good steering control.  The bike is fine tuned to include new less-noisier muffler and exhaust pipe to comply with 94db AMA noise limits, higher compression ratio of 12.5 to 1, revised intake and exhaust timing of the fuel injection, and changed ECU setting. 

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