Kawasaki KX250F 2011

This year Kawasaki’s KX250F won us over. Even with an ‘old school’ carburetor and overall feel, the engine am strong and simple to ride it overshadowed every other shortcomings. The bike am good, actually, that Kawasaki KX250F sales rose 18% this year, while almost every other brand saw sales slip. For 2011 Kawasaki’s engineers addressed those shortcomings with more than 30 changes, plus went full-scale with a brand new fuel injection system. fortunate to become invited towards the United states press launch from the new bike at famous Budd’s Creek, with ‘fast guy’ Greg Jones (the son of three-time U.S National MX Champion Gary Jones) providing ‘fast guy’ input.

About the tech side, the large news may be the Kehin battery-less fuel injection system. It's the same basic system utilized on last year’s KX450F however with different calibration; the high-rpm nature from the 250F requires 20 % more fuel flow compared to 450 does! The eu is infinitely adjustable with software from Kawasaki, however the bike comes stock with six preset fuel and ignition maps to permit most riders to tailor the powerband for their liking. The Kehin EFI system depends on input from the gear position sensor, an aura pressure sensor, a temperature of water sensor as well as an air pressure sensor to optimize the air/fuel ratio. The machine also incorporates a ‘vehicle down’ sensor, made to shut the engine down should you crash. Kawasaki’s goal ended up being to improve throttle response and lessen the powerband without losing control of the carbureted model, so it did; the engine makes better mid to top-end power compared to 2010 model.

Kehin Battery-less fuel injection features six pre-set maps for various conditions. With Kawasaki’s optional software you may make infinite alterations in the fuel and ignition curves.

Kehin Battery-less fuel injection features six pre-set maps for various conditions. With Kawasaki’s optional software you may make infinite alterations in the fuel and ignition curves.

Together with fuel injection the engine features new camshafts and valve springs, a brand new piston, a brand new cylinder, a brand new crankshaft, revised gear ratios along with a new easier shifting gear shift mechanism. The environment intake volume and also the headpipe length were increased to enhance low-rpm response, and also the quieter new muffler is made to meet 94 dbA.

The Separate Function Fork (SFF) product is preload adjustable, and for compression and rebound. Advantages incorporate a 1.5-pound fat loss, less stiction, and less costly servicing than conventional motocross forks.

The offset from the new tripleclamps continues to be reduced to 22.5 mm to provide the bike a lighter handling feel and increased front wheel traction. The rear shock also got the slippery Kashima treatment, together with new settings to higher match the brand new fork in advance. This sounds weird, however the engine mounts were changed from stiff aluminum to more flexible steel. Kawasaki’s factory riders claim this led to lighter handling, better cornering and overall maneuverability. The saddle includes a new cover with an increase of side grip, and also the 232.7 pound bike costs an MSRP of $7,299.