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Being the most extreme 600 sportswoman does not exempt you from undergoing an ungrateful but essential law: evolution. And even when our name is R6, we are no exception. But Miss Pistarde is hardly worried. With the Yamaha engineers who looked into it and an incredibly formidable potential on the track, the 2008 version of this furious 600 will delight many people..
Starting with technology enthusiasts. After adopting the YCC-T (drive by wire) throttle control system, the R6 now stings from its sister R1 the YCC-I (Yamaha Chip-Controlled Intake) variable intake. A set in the air box that allows you to modify the length of the intake horns.
All the cones are divided into 2 sections, the top one being mobile, actuated by a servomotor itself controlled by electronics. At low revs, to improve torque, the horns are separated and air passes through the lower section, resulting in short intake manifolds. The engine response to acceleration is thus better.
Higher in the towers, at a certain speed, the upper section lowers and covers the base cones. As a result, the intake pipes are longer and provide more gniak in high revs. Since a modification of the air box is essential, its orifice has also been improved to reduce air resistance..
To better manage this cocktail of electronics and admission, Yamaha took the opportunity to review the settings of the YCC-T and the injection. Especially since the engine manufacturers have added patator in the boiler.
13.1 to 1, does that mean anything to you? This is the compression ratio in the cylinders of the new R6. Quite simply the highest rate ever adopted on a production Yam. With 12.8 to 1 on the old model, it was already compressing quite a bit. But there, it becomes very strong. This was made possible by new high compression pistons. Distinctive point: their slightly convex shaped caps allow a combustion chamber with a “sloping roof”.
The internal modifications do not stop there: the recesses of the cylinder head have been dug to accommodate the four ultra-light titanium valves. To cope with the increased loads created by these new pistons, the connecting rod bearings have been widened and the main bearing grease hole has been revised. In addition, the intake and exhaust valve springs are now made from a more enduring alloy which guarantees the consistency and efficiency of the valves in extreme driving conditions on the circuit. The timing chain tensioner now benefits from a palladium carbide treatment to harden its surface and ensure consistent chain performance.
Cot
Exhaust, the intermediate silencer housed at the outlet of the tubes of the 2nd and 3rd cylinder is widened by 30%, always in order to improve the torque at low speeds.
That was the technical side. To find out what it looks like in numbers, 3 will be enough to make you salivate: 135. One hundred and thirty five horsepower obtained at 14,500 rpm (129 without the forced air intake). The power that a 750 developed not too long ago. Except that today, around this power, there is an EXUP, titanium valves, an anti-dribble, a Drive by wire YCC-I handle, a YCC-T variable admission, and a chassis that has it also evolved.
Thanks to its mastery of die-casting technology, Yamaha redefined the distribution of the rigidity of the frame by modifying the wall thickness of the two side beams by touches, in particular at the level of the pilot’s knees. At the same time, the wall of the steering column was thickened in order to gain rigidity, while the cross member that connected the left and right sides of the Deltabox frame disappears on the 2008 model, as was the case on the 2007 model R1..
These changes are almost impossible to see with the eye, but are supposed to improve handling and increase the precision of the R6 when cornering. In this regard, nothing is left to chance: the new fork sleeves also benefit from a differently distributed rigidity, a new lower triple tree, and an extended triple clamp offset. On this formidable front axle, the braking remains the excellent 310 mm double disc with 4-piston radial calipers; the only change comes from the thickness of the discs, going from 4.5 to 5 mm.
You were familiar with magnesium as the material used for housings, or certain parts of the frame. On the new R6 it is also used for the rear frame loop. And hop, 450 grams of gained at this place. Underneath, we find aluminum that is no longer extruded but forged in certain sections of the swingarm..
A few inches away, the rear suspension has been lightened via a new compression adjustment bracket, as on the last R1. And yet, the R6 has gained weight. 5 kgs in 2 years, to settle in 2008 at 166 kgs dry. Since last year, the crazy hunt for weight no longer seems to be the priority of manufacturers (except Honda and Ducati).
When you step on it, you will realize that the changes affect you too. The riding position is advanced by 5 mm and the half-handlebars descend by the same amplitude. Low values but which should make it possible to become even more united with the machine … and to be a little more terrified of each “cushy” ride.
On the aesthetic side, it is subtle and yet the R6 has gained even more (a little bit) in dynamism. But it will be necessary to be really attentive to distinguish that the upper edges of the sides have been redesigned, that the point of attachment of the mirrors is modified a tad, that the new bubble caps an even sharper beak, and that we have a bit reviewed the top of the tank. Flickers, but a design that is still incredibly aggressive and decidedly irresistible: as if adrenaline had guided the draftsman’s pencil. The little finishing touch that we loved: the sand-gold rims, like on the R1 SP version.
Dazzlingly efficient on the track, the YZF-R6 intends to hold the outposts for a long time to come. A small aesthetic touch-up, even more electronics and technological aids, more watts, a still optimized chassis … What a beautiful thing that evolution !
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Replaces
YZF-R6 600 2007
Model marketed in
2008
2009
Performances
-
Max speed:
about 270 km / h
The technical aspect
Yamaha YZF-R6 600 2008
- Frame
- Frame: double aluminum beam deltabox
- Tank: 17.3 liters
- Seat height: 850 mm
- Length: 2,040 mm
- Width: 700 mm
- Height: 1,100 mm
- Wheelbase: 1380 mm
- Dry weight: 166 kg
- Train before
- Telehydraulic inverted fork Ø 41 mm, deb: 115 mm
- 2 discs Ø 310 mm, 4 piston calipers radial fixing
- Front wheel:
120/70
– 17
- Transmission
- 6-speed
- by chain
- Rear axle
- single shock absorber, deb: 120 mm
- 1 disc Ø 220 mm, 2 piston caliper
- Rear wheel:
180/55
– 17
- Motor
- 4 Cylinders
in line
, 4 stroke - Cooling: Liquid cooling
- injection
- double ACT
- 4 valves per cylinder
-
600 cc
(67×42.5 mm) -
129
ch
at 14,500 rpm - 135 hp with forced air
-
6 mkg
at 11,000 rpm - 7.05 mkg with forced air
- Weight ratio /
power
: 1.29
kg / hp - Compression: 13.1: 1
- Crit’air:
Detached pieces
exhaust
motor
fluid
electricity
filtration
braking
chain kit
Competitors
Triumph 675 Daytona 2008
Honda CBR 600 RR 2008
2008 Kawasaki ZX-6RR 600
Suzuki 600 GSX-R 2008
Gallery
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