foradv.blogg.se - 2017 yz450f owners manual

7 Seventh generation: Yamaha WR450F - 2020-Presentįirst generation: WR400F - 1998-2000.

2000Ĥ26cc displacement, updated clutch basketĤ50cc displacement, automatic decompression exhaust cam and electric starting, side access airboxĪluminium frame, new headlight, LED taillight, revised dry-sump engine & camshafts (less lift and duration)įuel injection, YZ250F chassis, KYB SSS-type forks, revised engine position.ġ998-1999: 1,495 mm (59 in) 2000: 1,490 mm (59 in) Over much of its life the weight of the WR450F has remained fairly constant ranging from 244 to 249 pounds dry weight. Over the years the WR has benefited from the advances made in the YZ motocross version gaining displacement and advancements such as an aluminum frame and improved suspension.

The WR in the name indicates a wide-ratio gear box common to most enduro or trail bikes and stands in contrast to the close-ratio gearbox essential to a motocross racer. It is basically the racing YZ450F detuned slightly for more controllable power, with a headlight and lighting coil, softer suspension, a kickstand, lower noise specifications, larger radiators and lower emissions. First offered in 1998 at 400cc, it shared many components and design concepts with the YZ400F motocross model. It currently has a 450 cc (27 cu in) liquid-cooled single-cylinder engine.

The Yamaha WR450F is an off-road motorcycle made by Yamaha Motor Company. Single-cylinder, DOHC, Multivalve, water-cooled, four-strokeįront: Kayaba inverted fork fully adjustable