Monday, May 20, 2013
Yamaha YZF R6 Specs News and Review
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| 2011 Yamaha YZF-R6 |
Ultra-compact, lightweight, short stroke, 599cc, DOHC, 16-valve, liquid-cooled, in-line four-cylinder with lightweight titanium valves produces incredible horsepower. Redline is set at an amazing 16,000rpm. 67mm bore and 42.5mm stroke provide a fast revving powerplant. Engine width is minimized thanks to Yamahas special casting technologies and "liner less" cylinder design. Compact "pent roof" cylinder head design features ultra lightweight titanium valves for both intake and exhaust. The intake valve angle is 11.5 degrees and the exhaust is 12.25 degress. The intake valves are 27mm in diameter while the exhaust valves are 23mm.
Single intake valve springs reduce weight and "friction" for optimum high rpm performance. The valve retainers are made of lightweight aluminum. High flow intake and exhaust ports allow more fuel in and more exhaust out for great power delivery at all rpms. Lightweight magnesium cylinder head cover and case covers reduce weight. Separate cylinder block (the cylinder is no longer part of the upper crankcase) design utilizes ceramic composite plated "liner less" cylinder bores. The ceramic coating is sprayed directly on the aluminum block. The benefits are greater heat dissipation for consistent power delivery, reduced frictional power loss, reduced oil consumption and since there are no heavy liners, reduced weight too.
Lightweight forged pistons feature thin top rings for great high rpm power. The pistons are secured by lightweight tapered type piston pins. The lightweight design means fast engine response. Lightweight crankshaft features 31mm bearing journals. The inertial crank mass has been optimized for excellent throttle response and impressive acceleration. The crank journal bearings feature special oil holes that increase the supply of oil.
High lift / high performance, hollow, side-driven camshafts provide arm stretching power and strong acceleration. Automatic semi-hydraulic type cam chain tensioner reduces mechanical noise and maintenance.
Mikuni fuel injection system with 41mm throttle bodies features twin injectors (primary & secondary). This type of twin injector system is also found on our MotoGP M1 machine and the latest generation R1. Each of the injectors utilizes 12 spray holes to maximize the atomization process. The secondary injectors, located inside the airbox, begin to function at mid rpms (6,000 to 7,000rpm) thru to redline. This system is lighter and simpler than the sub motor driven secondary valve type FI system. Special short intake tracts allow for higher rpms and improved power.
The F.I. system features separate TPS (throttle position sensor) and APS (accelerator position sensor) sensors. Yamaha Chip Control Throttle (YCC-T) is another 1st for Yamaha. This system electronically controls the throttle valves for outstanding response and improved controllability at high rpms. The system features Throttle Position Sensor (TPS) and D.C. motor driven throttle valves. The YCC-T system electronically controls the throttle valves for outstanding response and improved controllability at all rpms. The YCC-T is used to provide even more control of the intake air volume for a smoother torque character. The YCC-T features 3 - ECUs inside the main ECU to control ignition, fuel injection and the YCC-T. This special ECU is capable of responding to changes at a speed of 1000th of a second.
YCC-I or Yamahas Chip Controlled Intake system means the intake funnels / stacks vary in length between 2 pre-set positions depending on engine rpms. The transition rpm is approximately 13,700 rpms. An electronic servo motor varies the funnels. The revolutionary YCC-I provides the best of both worlds …solid low rpm torque and power combined with an amazing high rpm rush. It takes only 0.3 of a second for the funnels to move from the tall to the short position.
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| 2011 Yamaha YZF-R6 |
Yamahas exclusive YCC-I electric-control servo motor-driven variable intake funnel system is a worlds 1st on a production motorcycle and works in conjunction with Yamahas fly-by-wire technology and FI systems.
7.6 litre air box utilizes a high flow viscous paper type air filter.
Ram Air Induction System with centrally located intake duct delivers cool, high-pressure air "force-fed" into the intake tract for optimal combustion and greater horsepower at higher speeds. This design provides straight induction from the central fairing duct to the airbox without a lot of bends or turns.
Close ratio 6-speed transmission delivers seamless power delivery and maximum acceleration. Gear widths, splines and engagement dogs have been optimized to handle the R6s power. The shift drum and shifting mechanism are located on the right side of the cases for smooth shifting feel under power. The gears use flat contact-type engagement dogs for positive shifting and great durability.
The "Tri-Axis" or stacked transmission design creates a more compact engine front to back that allows for optimum engine placement in the "sweet spot" of the frame for optimized weight distribution and incredible handling.
Slipper or back limiter clutch assembly reduces rear wheel hop when making hard down shifts or under hard braking. Key benefit is reduced lap times and smoother control when participating in either a race or track day. This clutch uses 9 paper based friction plates and 8 steel plates, plus 6 coil-type clutch springs.
The oil lubrication system has been optimized to reduce frictional loses caused by "oil drag". It features a "two side" oil pump. There is a separate liquid-cooled oil cooler to insure consistent engine temperatures for maximum performance and extended service life.
High capacity cooling system features a curved radiator with dual ring-type fans for excellent engine cooling efficiency. The ring-type fan offers more airflow than a conventional type fan.
Direct ignition coils, iridium dual electrode spark plugs and high-output magneto deliver reliable, super strong spark. With this system, the ignition coils are integrated into the plug caps, significantly reducing weight.
"Mid Ship" 4-into-2-into-1 exhaust maximizes engine performance. The header pipe diameter and length have been optimized for excellent flow. There are three, 3-way honeycomb catalyziers with an oxygen sensor in the system to reduce harmful HC & CO exhaust emissions. The oxygen sensor provides feedback to the ECU so it can adjust for the optimum fuel/air mixture. The "mid ship" MotoGP style, lightweight titanium muffler is located below the engine to central mass and lower the center of gravity for great handling.
The exhaust system also features Yamahas EXUP System (Exhaust Ultimate Power Valve) utilizing a titanium body and butterfly valves that prevent the "blow back" phenomenon caused by "valve overlap". This design reduces weight and maximizes cornering clearance. The EXUP system eliminates "flat spots" in the power band and reduces emissions too. This is a 1st on a 600cc supersport machine.
High powered 32 bit electronic control unit actually contains three ECUs inside the main ECU to control the FI system, the YCC-T system and the ignition system.
Air Injection System (AIS) injects fresh air into the exhaust ports to fully burn any unburnt fuel in order to reduce harmful CO & HC exhaust emissions
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| 2011 Yamaha YZF-R6 |
2011 Yamaha YZF-R6 - USA Specifications
MSRP:
MSRP* $10,890 (Candy Red/Raven) Available from October 2010/CA model November 2010
$10,690 (Raven) Available from October 2010/CA model November 2010
$10,690 (Team Yamaha Blue/White) Available from October 2010/CA model November 2010
MSRP:
MSRP* $10,890 (Candy Red/Raven) Available from October 2010/CA model November 2010
$10,690 (Raven) Available from October 2010/CA model November 2010
$10,690 (Team Yamaha Blue/White) Available from October 2010/CA model November 2010
Engine
- Type 599cc liquid-cooled inline 4-cylinder; DOHC, 16 titanium valves
- Bore x Stroke 67.0 x 42.5mm
- Compression Ratio 13.1:1
- Fuel Delivery Fuel Injection with YCC-T and YCC-I
- Ignition TCI: Transistor Controlled Ignition
- Transmission 6-speed w/multiplate slipper clutch
- Final Drive O-ring chain
Chassis
- Suspension / Front 41mm inverted fork; 4-way adjustable, 4.7-in travel
- Suspension / Rear Single shock; 4-way adjustable, 4.7-in travel
- Brakes / Front Dual 310mm floating disc; radial-mount 4-piston calipers
- Brakes / Rear 220mm disc; single-piston caliper
- Tires / Front 120/70-ZR17
- Tires / Rear 180/55-ZR17
Dimensions
- Length 80.3 in
- Width 27.8 in
- Height 43.1 in
- Seat Height 33.5 in
- Wheelbase 54.1 in
- Rake (Caster Angle) 24°
- Trail 3.8 in
- Oil Capacity (with oil filter change) 3.6 qt
- Fuel Capacity 4.5 gal
- Fuel Economy** 40 mpg
- Wet Weight*** 417 lb
Other
- Main Jet Not Applicable
- Main Air Jet Not Applicable
- Jet Needle Not Applicable
- Needle Jet Not Applicable
- Pilot Air Jet 1 Not Applicable
- Pilot Outlet Not Applicable
- Pilot Jet Not Applicable
- Primary Reduction Ratio 85/41 (2.073)
- Secondary Reduction Ratio 45/16 (2.813)
- Gear Ratio - 1st Gear 31/12 (2.583)
- Gear Ratio - 2nd Gear 32/16 (2.000)
- Gear Ratio - 3rd Gear 30/18 (1.667)
- Gear Ratio - 4th Gear 26/18 (1.444)
- Gear Ratio - 5th Gear 27/21 (1.286)
- Gear Ratio - 6th Gear 23/20 (1.150)
- Warranty 1 Year (Limited Factory Warranty)
