Revolutionary Yamaha YZF-R1

Since the original YZF-R1 was released, Yamaha's flagship 1000cc model has established a reputation as being one of the most innovative and exciting motorcycles in the large capacity supersport class. For 2009 that outstanding reputation is sure to be further reinforced.

Featuring an all new 998cc engine whose design, feel and character has been influenced by Rossi's championship winning M1, the new high-tech R1 powerplant is closely linked to Yamaha's Moto GP bike. In fact the 2009 model R1 engine has benefited from more Moto GP developed technology than any other in its history. In addition, the completely redesigned aluminium Deltabox chassis and aggressive new styling, give the new generation YZF-R1 a radical new look and bring innovative technology to the class. In the same way that the original YZF-R1 threw the rule book out of the window, this revolutionary new model sets a new benchmark for the super competitive 1000cc supersport category.

Crossplane crankshaft engine for purer torque outputRather than look exclusively to additional electronic aids to further enhance the new YZF-R1's performance and controllability ,Yamaha's engineers have opted for a mechanical solution. The most influential feature of the new YZF-R1 is the use of a new 998cc engine. Undoubtedly the single most significant piece of technology to be seen on this compact new high performance engine is its race developed crossplane crankshaft, which delivers outstandingly pure torque characteristics and high levels of traction. Indeed, the new engine's linear and controllable torque characteristics are the very essence of this radical new generation YZF-R1.Uneven firing interval for new levels of feel and traction.The new engine's uneven 270, 180, 90, 180 firing interval creates a whole new feel to the inline 4-cylinder engine, giving the new YZF-R1 rider a more precise and immediate feeling of control over the torque output levels. The result of this rider responsive torque is an enormously capable 1000cc supersport motorcycle that is designed to deliver previously unattainable levels of traction for unrivalled cornering performance.

To accentuate the performance gains of the new crossplane crankshaft engine, Yamaha have also developed a new short-wheelbase aluminium Deltabox chassis and optimised the front and rear suspension systems. And the radical and aggressive new styling emphasises the new YZF-R1's concentration of mass. Newly designed inline 4-cylinder engine. The new 998cc liquid-cooled inline 4-cylinder 4-valve engine features bore x stroke dimensions of 78.0 mm x 52.2 mm, giving an extremely short stroke layout, together with the largest bore dimensions ever used on a Yamaha 1000cc supersport engine. In association with the short stroke and big bore, a high compression ratio of 12.7:1 is featured, which contributes to the new engine's impressive power output of 182 PS at 12,500 rpm, and a torque output of 115.5 Nm (11.8 kg-m) at 10,000 rpm with natural aspiration.

Newly designed aluminium Deltabox frame. The 2009 YZF-R1 runs with a completely new aluminium Deltabox frame which has been designed to deliver first class handling and cornering. With the exception of the internal forced air intake ducts, the newly designed Deltabox frame is virtually completely different to the 2008 design, and as well as featuring a new shape with different dimensions, the type of aluminium used and the frame's overall rigidity balance are also changed for 2009. The new frame uses a combination of different types of aluminium to achieve the desired balance of rigidity. Gravity cast parts are used for the head pipe as well as the engine mount assemblies and the pivot support assembly, while the outside tank rails are made from CF die cast aluminium which allows the use of much thinner walls. Parts for the inner tank rail are made from extruded aluminium.

YZF-R1Engine Technical Highlights
-Moto GP developed 998cc liquid-cooled inline 4-cylinder 4-valve DOHC
-182 PS at 12,500 rpm without ram air
-115.5 Nm (11.8 kg-m) at 10,000 rpm
-Short-stroke, big-bore design
-Bore x stroke 78.0 mm x 52.2 mm
-Crossplane crankshaft
-Uneven 270 -180 - 90 - 180 firing interval
-Newly developed forged aluminium pistons
-D-mode Map
-Closed deck ceramic composite plated cylinder
-Fracture split (FS) carburised con rods
-Optimised large diameter crank journal and flywheel mass
-YCC-I (Yamaha Chip Controlled Intake)
-YCC-T (Yamaha Chip Controlled Throttle)
-Fuel injection system with secondary injector
-Redesigned forced air intake
-Slipper clutch
-4-2-1-2 exhaust and twin up-slanted mufflers