2005

For 2004 Yamaha has released the third generation R1, and all I can say is, For starters, it has an entirely new engine that pumps out a claimed 180-ram air assisted horsepower at 12,500 rpm. You have to look back to the FZ 750 of 1985 for Yamaha’s first forward slanted five-valve engine. And sticking to their unique design, Yamaha’s engineers have tilted this year’s engine 10 degrees forward, for a total lean of 40 degrees from vertical.Inside the new cylinder head, the intake and exhaust valves have grown 5mm in diameter while shrinking in length. Both sets of valves have steeper angles and use stronger springs as the new engine revs some 2,000 rpm higher than the previous model. Yamaha YZF-R1 Fairings