What was the first four stroke Yamaha motorcycle?
It became an iconic motorcycle in its own right and was the first dirt-only four-stroke Yamaha offered. 1979: This was a year of reverse progress in Japanese motocross. The YZ400 was redesigned with a short-stroke motor that wasn’t as effective as the one it replaced.
When did the Yamaha YZ400 two stroke come out?
Brian Palmer’s 1979 YZ400. 1982: The Yamaha YZ490J was introduced. In addition to the added displacement, it got a major revision to the Monoshock design, now incorporating linkage between the shock and swingarm. The 490 was heavy, fast and very demanding of its rider. Unfortunately, the Open class in motocross was already fading]
Who was the first person to win a supercross on a four stroke bike?
It was originally seen as a replacement for the YZ490 in the Yamaha line, but AMA rules of the day allowed 560cc four-strokes to compete against 250cc two-strokes. Doug Henry famously became the first man to win a Supercross on a four-stroke in 1997 when he raced the Las Vegas Supercross on a prototype YZM.
What was the name of the first Yamaha dirt bike?
It got a plastic fuel tank in 1977 and an aluminum swingarm in ’78. The 1978 YZ400E is considered one of the best Open-class MX bikes of the entire decade. The TT500 also arrived in 1976. It became an iconic motorcycle in its own right and was the first dirt-only four-stroke Yamaha offered.
It became an iconic motorcycle in its own right and was the first dirt-only four-stroke Yamaha offered. 1979: This was a year of reverse progress in Japanese motocross. The YZ400 was redesigned with a short-stroke motor that wasn’t as effective as the one it replaced.
Is the Yamaha RD400F a two stroke bike?
It is, of course, the RD400F, a 400cc two-stroke known also as the Daytona Special. And it is special indeed. Amazingly, the Daytona wasn’t simply a previous-year RD400 with a flashy new paint job, which you might expect given the two-stroke streetbike’s seemingly dim future in the US.
Which is better a 2 stroke or 4 stroke Yamaha?
The Yamaha 4 strokes would go for 2 – 3 seasons without anything but oil changes and that’s bouncing off the 10,000 rpm redline constantly. The motors are rated at the prop,2 or 4 stroke. A 2 stroke will rev quicker but does not have the same torque/power as a 4 stroke.
Brian Palmer’s 1979 YZ400. 1982: The Yamaha YZ490J was introduced. In addition to the added displacement, it got a major revision to the Monoshock design, now incorporating linkage between the shock and swingarm. The 490 was heavy, fast and very demanding of its rider. Unfortunately, the Open class in motocross was already fading]