Yamaha YZF 1000 R1MotoGPReplica Make Model | Yamaha YZF1000 R1MotoGPReplica | Year | 2005 | Engine | Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder. | Capacity | 998 | Bore x Stroke | 77 X 53.6 mm | Compression Ratio | 12.1:1 | Cooling System | Liquid cooled | Lubrication | Wet sump | Engine Oil | Synthetic, 10W/40 | Exhaust | Alloy muffler | Induction | Fuel injection, dual-valve throttle bodies with motor-driven secondary valves, 45 mm throttle body | Ignition | TCI (Transistor Controlled Ignition) | Spark Plug | NGK, CR9EK | Starting | Electric | Max Power | 171.3 hp / 126 kW @ 12500 rpm | Max Torque | 107 Nm / 10.91 kg-m @ 10500 rpm | Clutch | Wet, multiple discs, cable operated | Transmission | 6 Speed | Final Drive | #530 O-ring chain | Frame | Deltabox V aluminium aluminium, twin spar | Front Suspension | 43mm Kayaba inverted telescopic forks, preload, compression and rebound damping adjustable. | Rear Wheel Travel | 120 mm / 4..7 in | Rear Suspension | Truss-type Aluminium swinging arm Monocross, preload, compression and rebound damping adjustable. | Rear Wheel Travel | 130 mm / 5.1 in | Front Brakes | 2 x 320mm discs 4 piston calipers | Rear Brakes | Single 220mm disc 4 piston caliper | Rim Front | 3.50-17 | Rim Rear | 6.00-17 | Front Tyre | 120/70 ZR17 | Rear Tyre | 190/50 ZR17 | Rake | 24° | Trail | 91 mm / 3.8 in | Dimensions | Length 2050 mm / 80.8 in Width 720 mm / 28.3 in Height 1105 mm / 43.5 in | Wheelbase | 1395 mm / 54.9 in | Ground Clearance | 135 mm / 5.3 in | Seat Height | 833 mm / 32.3 in | Dry Weight | 172 kg / 379 lbs | Wet Weight | 185 kg / 407.8 lbs | Fuel Capacity | 18 Litres / 4.7 gal | Consumption Average | 17.8 km/lit | Standing ? Mile | 10.7 sec / 145..3 mph | Standing 0-60 mph / 0-100 mph | 3.1 sec /5.6 sec | Top Speed | 296.1 km/h / 184 mph | Manual | Exup1000.co.u / R1-0M-MC-2000-parts Microfiche /YZFR1 (S) 2004 SERVICE MANUAL | For 2004/05 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. Opening and closing the 20 valves are new camshafts. Interestingly, the intake cams have more lift, while the exhaust cams now have less to reduce mechanical power loss. They have also been lightened 4% by the use of smaller journals, which allows them to spin faster. A hydraulic cam chain tensioner keeps the cam chain honest at the higher rpms. Revised combustion chambers provide a 12.3:1 compression ratio, up from last year’s 11.8:1. Providing the spark, shorter CR9EK spark plugs stay well clear of the pistons. For 2004, piston diameter is enlarged to 77mm, while the piston skirt height has been reduced. Running in sleeveless cylinders, the bigger bore means a wider cylinder, even with a smaller 5mm gap between them. The connecting rods are now 2mm shorter at 34mm. The journals have also been reduced 2mm in size to help the crankshaft weigh in 16 percent lighter. Carbonized for greater strength, the quicker revving crank is also 23.7mm narrower. During the pre-ride presentation, I found it interesting to learn how the connecting rods are produced. Using a fracture split process, the rods are made as one piece and split. This allows the surfaces to mate closer together for more strength, as the two pieces are mirror images of themselves. In keeping with the stronger and lighter theme, this year’s clutch basket loses 5 percent of its weight. It’s also narrower, and uses six coil-type springs in place of last year’s diaphragm type clutch spring. Three of the cork friction plates have also been changed to a paper base to better deal with the heat. The new clutch transfers power to a close ratio gearbox that gives no fuss on the racetrack. Start shifting at lower rpm on the street, and it needs a decisive foot to show it who’s boss, but it’s never harsh. |