2014
Yamaha YFZ450R Special Edition - Black / Crimson Red
Yamaha
YFZ 450R New Features
All-new engine settings including a new ECU and an increase
in the compression ratio add power output while dramatically
increasing mid-range performance.
New A+S (assist and slipper) clutch uses lighter clutch springs
which results in a lighter clutch pull to reduce racer/rider fatigue
while reducing the effect of engine braking while downshifting.
New throttle body assembly and muffler shape combine to
improve throttle response.
All-new suspension, including new front and rear shock
absorbers, reduces weight and provides exceptional handling
characteristics and rider comfort.
All-new bodywork design was focused on improving the racer’s/
rider’s ability to move around. New side shrouds improve comfort
and reduce fatigue while new heel guards are positioned closer to
the chassis to centralize the riding position and provide more room.
New tires from Maxxis® with new tread design focus on consistent
sliding control and awesome traction during cornering.
Yamaha Diagnostic Tool (YDT) has been added to improve
serviceability.
Assembled in Newnan, GA, U.S.A.
Yamaha
YFZ450R Key Features
The YFZ450R SE features eye catching Black/Crimson
graphics with quick-release fasteners for no-tools
installation and removal of the front and rear fenders,
and a dealer installed GYTR® black front grab bar.
The YFZ450R is the most technologically advanced sport
ATV on the market today. It is simply the top of the
line “racing” level Sport ATV. It combines a high-tech,
quick-revving, titanium five-valve, 449cc fuel-injected
engine with a lightweight, professional-caliber cast
aluminum/steel chassis. The power/chassis
combination will make for a championship-winning
machine time and time again.
The YFZ450R is motocross ready. The weldless frame is
designed from lightweight aluminum, with a tensionsteel
bottom frame that lets the engine sit lower for
excellent mass centralization. All-new suspension
components and settings for 2014 reduce weight while
providing light, agile handling characteristics with an
excellent balance of sharp handling and rider comfort.
For 2014, all-new bodywork is designed for great ergonomics
and rider comfort, with more room to hang off in
the corners, and the seat shape is padded in just the right
places to improve lap times. Body panels come off easily
without tools for service; there’s no need to remove the
battery or other components to take the fenders off.
More power for 2014. The 449cc engine uses titanium
five-valve cylinder head technology, with new cam profiles,
and a newly designed exhaust system to deliver
abundant power in the mid-range to top end, with more
“hit” feeling right off idle. The higher compression ratio
further improves overall engine performance.
The YFZ450R incorporates Yamaha Fuel Injection for
precise fuel delivery. With a big 42mm Mikuni® throttle
body and 12-hole injector, this system provides
exceptional atomization of the fuel for maximum power.
The system also includes ISC (Idle Speed Control) for
easy, reliable start-up and warming.
The industry’s first A+S (assist and slipper) clutch on a
Sport ATV reduces clutch lever effort by about 25% for
less fatigue while at the same time increasing clutch
plate pressure for positive engagement. Additionally,
this new clutch system reduces the engine braking
effect, which allows faster cornering, particularly when
downshifting, and also allows the suspension to absorb
bumps better during braking.
An aggressive aluminum front bumper comes stock on the Yamaha YFZ450R SE
Maxxis Tires give the Yamaha YFZ450R plenty of traction in all kinds of terrain
Yamaha
YFZ 450R Engine
The fuel-injected 449cc engine has superb power characteristics.
Power delivery is smooth and strong off the line with lots of
mid-range to top end power where you need it.
The crankcase holds a crankshaft that’s ready to handle the
increased demands of the racer, as well as a counterbalancer
for superior vibration control. To handle the engine’s new power,
the crankshaft is even more durable for 2014 . The crankcase
also houses the oil tank, which helps to centralize mass for
unmatched handling while making maintenance easier.
Camshafts have been revised to help maximize the engine’s
impressive power output from off the line all the way up to the
top end.
Yamaha fuel injection uses a 12-hole injector that provides
exceptional atomization of the fuel for maximum combustion
efficiency and power delivery. The system also uses a big, 42mm
Mikuni® throttle body and includes ISC (Idle Speed Control) for
easy, reliable start-up and warming.
The new body configuration allows more room for even an
aggressive racer to move around during the moto. The seat is
narrow in the front, yet wide and padded in the rear to reduce
fatigue, especially when railing a turn.
The wheels have been designed with the inner lip rolled in.
This increases the rigidity, allowing a reduction in weight while
maintaining strength.
Wheels are set motocross-spec wide, near the maximum
allowable 50 inches, for great cornering speed. The Maxxis® tires
are designed to help provide excellent handling, sliding control,
and traction. At 20 inches in the rear and 21 inches in the front,
they provide much better ground clearance than the competition.
That makes the YFZ450R fun to ride off-road, too.
Large diameter, tapered handlebars reduce vibration and are
mounted on 4-way clamps for exceptional adjustability. There
are two sets of holes in the handlebar crown and the eccentric
clamps so the rider can choose the standard setting, 10mm or
20mm forward, or 10mm back.
Foot pegs are a generous 2.6 inches wide, something riders will
appreciate every time they want to get up on the pegs. New heel
guards provide more room and are positioned closer to the
chassis for a slimmer feel.
The frame is a combination of aluminum and steel for light
weight. The frame member under the engine is steel, used for
its combination of strength and low profile. This allowed the
designers to sit the engine lower overall for excellent mass
centralization for unmatched handling. The aluminum frame is
bolted together, rather than welded, for maximum durability.
The front frame is as narrow as possible at the A-arm mounting
points. This dramatically increases the A-arm length, which
reduces changes in camber as the suspension travels through its
full range of motion.
The new front KYB shocks are longer for increased suspension
stroke with superb bump absorption and excellent anti-bottoming
characteristics, and they have Kashima coating for smooth
operation. The 9.8 inches of wheel travel means this racer is up
to even the most challenging tracks.
The rear swingarm is crafted of strong, gravity-fed aluminum,
and it’s matched to a fully adjustable 46mm KYB piggyback
shock absorber for excellent handling. Rear wheel travel is 11.0
inches for comfort even on tough terrain.
For excellent stopping ability, YFZ450R features dual front
hydraulic disc brakes and a trick-looking, lightweight wave-type
rear rotor.
Additional
Features
The throttle lever
requires low effort, and it’s
very comfortable
to use. That means less fatigue
during all-day riding.
The instrumentation
is all business. The discrete panel
on the fender in front of the rider
gives vital indicators about low
fuel, coolant temperature, check
engine, and neutral gear via a straightforward
LED display.