2005年11月1日 · The new YZ 4-stroke engine is designed to run on 92 octane gasoline. This unusual stoichiometric accomplishment is achieved by employing a very unique carburetor and digital (computer microchip...

1998年3月1日 · Yamaha’s YZ400F has to be considered a resounding success. The company gambled on an unproven concept, rushed the result into production, and in the process opened a new chapter in motocross...

Yamaha continued to offer two different lines: the big YZ remained 360cc in displacement, while the new MX400 was 397cc. The MX was heavier and cheaper, but in a weird twist, most riders preferred it over the pipey YZ360.

2012年4月1日 · For starters, the stock engine pumps out 42 horses and does it with a red line at 11,200 rpms. A stock YZ250 puts 43 ponies to the ground but signs off before 9,000. The 400F also has almost non-existent engine braking.

1997年9月1日 · Yamaha’s got one and it’s as serious as a 90-foot triple-jump. It’s the YZ400F,4 available in dealerships this December. A full-blown 400cc four-stroke racebike may be shocking news, especially...

2024年1月23日 · This 1979 Yamaha YZ400F was acquired by the seller in 2023 following reported refurbishment work under previous ownership that involved powder-coating the frame in black, overhauling the 396cc two-stroke single, re-jetting the Mikuni carburetor, re-upholstering the seat, and replacing the drive chain, grips, fork seals, tires, bearings, fenders ...

De Winner: Yamaha YZ400F. Even though the YZF outweighed the two-strokes by 14 to 17 pounds, it felt lighter on the track, Surprisingly, the heaviest bike in this comparison is the most fun on a motocross track, and it is, by far, the fastest through turns.

2005年11月1日 · When starting the YZ 400, all one has to do is pull the choke knob, push the kickstart lever to where the engine's past Top Dead Center on the compression stroke - then boot down firmly....

2005年11月1日 · Now that Yamaha has the first YZ-400F out of the bag, what could be done that would make the bike better? Actually, despite some of our collective complaints, all the Off-Road.com Dirt Bike...

2012年8月9日 · The northwest premiere used dirt bike parts store. Quality vintage, motocross, dual sport and modern used dirt bike parts. Your dirt bike engine and part information source. Specs for 1998 Yamaha YZ400F.