The Yamaha YZF-R1, introduced in 1998, is a sport bike manufactured by Yamaha
Motor Company.

Contents
1 1998–1999
2 2000–2001
3 2002–2003
4 2004–2005
5 2006
6 2007–2008
7 2009
8 Specifications
9 References
10 External links



1998–1999

Yamaha launched the YZF-R1 after redesigning the Genesis engine to offset the
crankshaft, gearbox input and output shafts. This "compacting" of the engine
yielded a huge dividend in that the total engine length was now much shorter.
This allowed the wheelbase to be shortened significantly which resulted in much
quicker handling and an optimized center of gravity. The bike had a compression
ratio of 11.8:1. with a 6-speed multi-plate clutch transmission.
The launch model Yamaha YZF-R1 was available in white/red or blue. Early models
were subject to a worldwide recall for a clutch problem. Yamaha today describes
the launch of the R1 as the true value of "Kando".

2005 YZF-R1 instrumentation The 1999 R1 saw only minor changes apart from paint
and graphics. Notable improvements were a redesigned gear change linkage and the
gear change shaft length which was increased for better gear shifting. Fuel tank
reserve capacity was reduced from 5.5 l (1.2 imp gal; 1.5 US gal) to 4.0 l (0.88
imp gal; 1.1 US gal), while the total fuel tank capacity was unchanged at 18 l
(4.0 imp gal; 4.8 US gal). A second worldwide recall was issued for 1998 and
early 1999 models to change a coolant hose clamp under the fuel tank which
could, under hard use, come adrift.



2001 YZF-R1 2000–2001

In 2000, Yamaha introduced a series of changes to improve the bike, plus minor
changes to the body work to allow for better long duration ride handling. The R1
was an excellent bike to live with on short runs, but due to its quick handling
was not a favorite longer run bike. Yamaha's main design goal was to sharpen the
pre-existing bike and not redesign it. Even so they instituted over 150 changes
in hopes of making an already light, sleek and mean motorcycle even lighter,
sleeker and meaner. For example, even with the addition of the new Air Induction
System, which weighs four pounds, the overall weight of the bike is down five
pounds to 414 lb (188 kg) dry. At 127.8 bhp (95.3 kW) at the rear wheel,
top-end output remains the same but changes to the engine management system are
supposed to result in a smoother, broader distribution of power.The bodywork is
still unmistakably R1 although a few changes were made resulting in a 3%
reduction in the drag coefficient. The headlight housing has a sharper profile,
the side panels are more aerodynamic and slippery and the windscreen has been
reshaped for better rider protection. In fact the bodywork changed so much that
bodywork from previous R1s will not fit the Y2K edition. Also updated is the
seating area. The fuel tank is reshaped with a more relaxed rear angle and
deeper leg recesses to provide for better rider feel. The seat extends further
towards the front of the tank and the new, steeper seating position puts
additional weight on the front end. All of this is aimed at improving weight
bias and offering sharper cornering and more stability. Again, the resounding
theme here is to sharpen what was already a very sharp package. The carburetors
have been rejetted in an effort to improve throttle response—especially in the
low end—all the way up to the bike's 11,750 rpm redline. The redesigned
camshafts are lighter and use internal oil ways to lubricate journals that, when
combined with reduced tappet clearance, provide less friction and create less
engine noise. Also changed within the crankcase is the gearbox featuring a
taller first gear, a hollow chrome-moly shift-shaft with an additional bearing
and a completely redesigned shift linkage and foot pedal. These changes are
aimed at nixing last year's transmission complaints as well as helping to
transfer as seamlessly as possible the R1's prodigious power to the pavement.


2002–2003

2002 YZF-R1 with aftermarket high-mount exhaustA new fuel injection system was
introduced for the 2002 year, which worked like a carburetor by employing a CV
carburetor slide controlled by vacuum created by the engine. With a similar
power output to the 2000-2001 bike, the engine was remained largely the same.
One notable improvement was the use of new cylinder sleeves of a high silicon
content alloy containing magnesium that minimized heat induced distortion,
reducing oil consumption. Also in 2002, Yamaha released the newly developed
"Deltabox III" frame,[3] which, with its hydro formed construction, dramatically
reduced the total number of frame welds. These changes improved the frame's
rigidity by 30%. The cooling system was redesigned for better performance and
compactness. The exhaust system was changed from a 4-into-1 to a new titanium
4-into-2-into-1 design. The rear end of the motorcycle was updated and
streamlined with a LED taillight. This allowed for very clean rear body lines
when choosing one of several common after market modifications, such as removal
of the turn signal stalks and stock license plate bracket; and replacing them
with assorted available replacements that "hug" the body or frame. Also, front
end lighting was improved in 2002, between the higher definition headlights and
also side "parking" lights within the twin-headlight panel, giving a more
angular appearance. This also gave additional after market possibilities, such
as to remove the front blinkers and utilize these front lights as directional or
hazard markers while stopped. For 2003, the only change was the choice of
colors, fitted hazard warning lights and dipped headlights, which stay on all
the the time the engine is running. The previous years all had a "Red" option,
but this was replaced by a black with red flames "Special Edition" which cost an
extra $100.


2004–2005

2004 YZF-R1With the competition advancing, Yamaha took to a major development.
This included style updates like an under seat twin exhaust, and performance
upgrades including radial brakes and for the first time on an R1 Ram-air intake.
Furthermore, the wheelie-tendency known from earlier productions is drastically
reduced by changing frame geometry and weight properties. The all new engine (no
longer used as a stressed member of the chassis) featured a separate top
crankcase and cylinder block. The 2004 R1 produces a stated 172 hp (128 kW) at
the crankshaft (excluding ram air,180 hp (130 kW) with ram air) and also weighs
172 kilograms (dry). The conventional front brake calipers were replaced by
radially-mounted calipers, activated by a radial master cylinder. Also newly
added for this year was a factory installed steering damper. Combined with the
changes to the frame, it helped to eliminate the tendency of the handlebars to
shake violently during rapid acceleration or more so during deceleration on
downgrade and less-than-perfect surfaces (aka "tank slapping").


2006 YZF-R1 2006

In 06, Yamaha is now rated with 180 hp (130 kW) at the flywheel. In addition,
the swingarm was extended 20 mm longer due to acceleration instability. Also, in
2006 the 50th anniversary of Yamaha racing in America, Yamaha released the
limited edition version in original Yamaha racing colors. The model (LE/SP)
featured a Kenny Roberts replica paint pattern with yellow and black paint, and
front and rear custom Öhlins suspension units developed by the people who work
on the YZR-M1 MotoGP bike. Custom forged aluminum Marchesini wheels specifically
designed for the LE shaved nearly a pound of unsprung weight. And a back
torque-limiting slipper clutch, and an integrated lap timer rounded out the
package making the LE more of a production racer. It had an MSRP of $17,999 and
only 500 units were made for the United States.


2007-2008 YZF-R1

2007 Yamaha YZF-R1 used by Noriyuki Haga in the Superbike World Championship.An
all-new YZF-R1 for the 2007 model year was announced on 8 October, 2006. Key
features include an all-new inline four-cylinder engine; going back to a more
conventional 4-valve per cylinder rather than Yamaha's trade mark 5-valve
genesis layout. Other new features are the Yamaha Chip Control Intake (YCC-I)
electronic variable-length intake funnel system, Yamaha Chip Control Throttle
(YCC-T) fly-by-wire throttle system, slipper-type clutch, all-new aluminum
Deltabox frame and swingarm, six-piston radial-mount front brake calipers with
310 mm discs, a wider radiator, and M1 styling on the new large ram-air ports in
the front fairing. 2008 brought BNG and the ability to buy limited edition Fiat
plastics.


2009

In late 2008 Yamaha announced they would release an all new R1 for 2009. The new
R1 takes engine technology from the M1 Motogp bike with its cross plane
crankshaft, the first ever production motorcycle to do so. Crossplane
technology, puts each connecting rod 90° from the next, with an uneven firing
interval of 270°- 180°- 90°- 180°. The idea of this technology is to reduce
internal crankshaft torque, thus giving the new R1 a more linear power delivery.
Yamaha claims the bike would give the rider 'two engines in one', the low torque
of a twin and the pace of an inline four. As with previous incarnations of the
R1 the 2009 model keeps its YCC-T (Yamaha Chip Controlled Throttle). The R1 is
now rated at 182 PS @ 12,500rpm at the crankshaft (without ram-air).
Another advancement included on the 09 model is D-Mode Throttle Control Valve
Mapping which allows a rider to choose between 3 distinct maps depending on the
rider’s environment. Each mode of operation controls YCC-T characteristics
changing how the R1 reacts to driver input. The first mode is Standard Mode,
which delivers performance for a wide variety of driving conditions. The second
mode is "A" mode which will give a rider more available power in the lower to
middle RPM range. The 3rd mode is "B" mode, which is a dial back of the previous
mode, designed to soften throttle response in inclement weather and heavy
traffic. D-Mode throttle control is controlled via the rider through a forward
mode button near the throttle. The instrument panel is more comprehensive than
previous models and the '09/'10 Yamaha YZF-R1 model now features a gear
indicator as standard

Overall handling of the R1 was improved through several changes to frame and
suspension. A new sub frame was designed for the 09 R1 which is magnesium cast
in a carbon fiber mold. This new sub frame offers a superior strength to weight
ratio, while helping keep mass closer to the center of gravity and subsequently
gives the bike greater handling performance. The rear shock on the 09 offers
variable speed damping as well as an easy to tweak preload via a screw
adjustment. The rear shock now connects underneath the swing arm through
different linkage; a change from previous years models. Front suspension takes
its cues from the M1 as the left fork handles compression damping while the
right controls the rebound duties. As an added bonus to overall handling and
safety, this is the first year Yamaha developers included an electronic steering
damper on a production R1.

The overall look of the R1 has changed drastically. In a side by side comparison
between last year’s model and the 09; to the eye, the 09 looks much more compact
and could be compared to the size of the R6r. The center up exhaust on the 09
seems significantly larger compared to previous years, due in some respects to
changes in emissions controls. The front has the same classic R1 shape, though
the air intake location and headlamp design have been revamped on the 09 model;
utilizing only projector lamps and using the new found design space within the
nose cone to reroute ram air tubes next to the lights. Four color schemes have
been released for the 09 Model: Blue/Black; Red/black; White/Red; Yellow/Black.

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