The YZ400 was redesigned with a short-stroke motor that wasn’t as effective as the one it replaced. This allowed European makers—mostly Maico—to get back in the game. Honda and Kawasaki had nothing in the Open class, while Yamaha and Suzuki had nothing for …

1998年3月1日 · With one eye on forthcoming off-road emissions constraints, and the other on competing head-to-head with 250cc motocrossers, Yamaha’s racing division hatched the idea of a four-stroke 400cc...

2011年9月9日 · The Yamaha YZ400 was one of those bikes from the late 1970s that was revolutionizing the motocross and trail bike world. Suspension and chassis design and engineering had finally caught up with trench-digging engine power, making dirtbikes seriously fast. Prices of YZs in modern times are surprisingly inexpensive.

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,...

1998 YAMAHA YZ400, Call us today & schedule a test ride at Northwest Harley Davidson today at (800) 694-6447 or for more information on this bike. Our knowledgeable sales staff is here to assist you. We have many finance options to help you ride off on the bike of your dreams today!

2024年1月30日 · This Yamaha YZ400 is powered by a 396cc two-stroke single mated to a five-speed transmission and is finished in white with red and black graphics.

2019年11月23日 · A great leap forward in frame, engine and suspension design, the 1977 YZ400 was only lacking in it's ability to track corners because of the round tubular swing arm that caused too much flex. The monoshock was now encased inside the …

2010年1月6日 · From the Paulie B archives, this is a scanned article from Cycle magazine dated Sept. 1979 on the 79' YZ400F. At first I was gonna PM it to VintageYZ400 but then I figured you guys would get a kick out of it too. Back then the bike was the darling open motocrosser of all the magazines and was ahead of it's time.

2005年11月1日 · Yamaha built the YZ 400 engine based on computer modeling studies. It shares little, if anything, with its ancestors. Power is generated in the ceramic composite plated cylinder via 5 valves:...

1978年1月1日 · Last, largest, but definitely not least, is the new YZ400, which shares the same race-bred improvements as its smaller counterparts. Longer forks and an aluminum swing arm are incorporated, as is...