Fifth-generation Yamaha YZF-R1
Today, much of the focus in supersport machine development is on computer control, and Yamaha is at the forefront of this exciting new technology. Yamaha's G.E.N.I.C.H. technology is an advanced concept which involves the application of cutting edge electronic control technology in order to realise the dual goals of achieving increased performance and enhancing the riding experience.
This sophisticated concept forms the bedrock on which all Yamaha development is based, and it guides Yamaha's creative spirit. G.E.N.I.C.H. is responsible for one of Yamaha's most famous innovations, namely the YCC-T (Yamaha Chip Controlled Throttle) which has played a pivotal role in making the new-generation YZF-R6, today's leading 600 supersport.
And now, for 2007, Yamaha introduce YCC-I (Yamaha Chip Controlled Intake), the latest ground-breaking innovation in electronic intake control which is designed to raise the performance of the new R1 to a new level.
The YCC-I system features electronically-controlled variable intake funnels, and is the first electronically-controlled motor-drive system ever used on a production motorcycle. This unique system features four lightweight plastic resin funnels which are divided into an upper and a lower section, and while fully connected, the two sections create a funnel of 140mm in length.
However, when the new R1 engine reaches a specific rpm - and the throttle opening also exceeds a certain level - the upper and lower funnels separate to create a shorter intake funnel of 65mm in length. The pre-programmed separation of all intake four funnels is simultaneous, and is driven by an electronically-controlled servo motor.
In effect, the new R1 engine is a true 'no compromise' design which is able to deliver highly efficient performance in a wide range of riding conditions. Riding around town at lower rpm, the 998cc engine is operating with its long 140mm intakes, which give strong torque and excellent throttle response. And once the rider increases the engine speed and throttle opening on fast highways or when circuit riding, the intake length is instantaneously reduced to 65mm, allowing the engine to reach its full potential.
Featuring an all new engine, chassis and bodywork, the new R1 can justifiably claim to be the most sophisticated high-tech supersport machine ever built. And, at the same time, it also delivers the most exciting, rewarding and responsive riding experience imaginable.
The new fifth-generation R1 is powered by the most powerful and the most technologically-advanced engine ever featured on a production Yamaha. Its liquid-cooled 4-stroke in-line four-cylinder engine runs with the same bore x stroke dimensions of 77 x 53.6mm as the 2006 model, but that is where the similarity ends.
Producing 180PS at 12,500rpm (not including direct air induction), the new fifth-generation R1 is undoubtedly the most impressive and powerful R-series motorcycle ever produced.
More importantly, it is the remarkably controllable character of the power delivery that marks this machine out as a leader. This well-rounded supersport machine delivers a broad spread of linear power throughout a wider rpm range compared to the previous model, making the 2007 R1 an even more impressive performer on both the road and track.
Peak power has been increased by 5PS, and significantly, the transitional characteristics of the power are dramatically improved on the new machine.
In brief: Yamaha YZF-R1
Engine: Liquid cooled, 4-stroke, DOHC, 4-valve, forward inclined, parallel 4-cylinder
Displacement: 998cc
Bore & Stroke: 77.0 x 53.6mm
Max. power (without direct air induction): 132kW @12,500rpm
Max. power (with direct air induction): 139kW @ 12,500 rpm
Max. torque (without direct air induction: 113Nm @ 10,00rpm
Max torque (with direct air induction): 118Nm @ 10,000rpm
Transmission: Constant mesh, 6-speed
Frame: Aluminium die-cast Deltabox
Front suspension: Telescopic forks
Rear suspension: Swingarm
Front brake: dual discs
Rear brake: Single disc
Dry weight: 177kg
Fuel tank capacity: 18 litres (3.4L res)
