The new 2012 YFZ450 offers great
value – true 450cc class performance
at 400cc class price.
Significantly more low and midrange
performance compared with the previous
YFZ450 model, yet with the same peak
power output thanks to revised cam
profile and timing and new ignition
mapping. Throttle lever effort is
lighter than before for all-day riding
comfort.
Lightweight, ultra-compact steel
frame with aluminum sub frame give
the new YFZ450 awesome flexibility.
Just like its YFZ cousins, the new
YFZ450 has great handling characteristics
the family is known for.
The new YFZ450 comes standard with
pushbutton electric starting, a convenient
flip-type parking brake and suspension
calibrated for performance.
A plethora of GYTR® accessories
are readily available for this machine.
Yamaha
YFZ450 ATV Engine
449cc liquid-cooled, DOHC four-stroke
with five valves features 95mm bore
and 63.4mm stroke for massive power
with high over-rev capacity and crisp,
linear throttle response.
A large 42mm Mikuni® BSR carburetor
delivers precise fuel/air mixing and
crisp throttle response with low throttle
lever effort.
Smooth-shifting YZ-spec ratchet-type
five-speed transmission and heavy-duty
clutch deliver all that power to the
rear tires with maximum efficiency.
Large-capacity radiator is optimally
mounted in the frame to guard against
damage.
Reliable pushbutton electric start
in any gear adds extra convenience.
Additional weight-saving engine
features include: magnesium cylinder
head cover and right-side crankcase
cover.
Dry-sump engine carries oil in
an aluminum tank directly in front
of the engine for excellent cooling
and optimal protection from rocks
or mud.
Large capacity airbox features
no-tool access to the extra large
oiled dual-foam filter for easy maintenance.
Yamaha
YFZ450 ATV Chassis/Suspension
Independent aluminum upper A-arm
front suspension features 9.1 inches
of travel.
Rear suspension system uses YZ-linkage
type, controlled by a piggyback shock
with 10.6 inches of travel.
Dual hydraulic front brakes with
127mm discs and classexclusive, dual-piston
hydraulic 173mm rear disc provide
strong braking capability with progressive
control and feel.
The wheel has been designed with
the inner lip rolled in. This increases
the rigidity, allowing a reduction
in weight while maintaining strength.
High-performance 21x7R-10 front
and 20x10R-9 rear Dunlop® radials,
designed specifically for the YFZ450,
deliver superb, class-leading traction.
Long travel out back means an excellent
ride and handling.
Eccentric chain adjuster mechanism
simplifies that job.
Long, low, and narrow YZ-style
seat enhances the quick, balanced
steering and optimal rider movement.
Additional
Features
Rugged steel 45mm foot rests provide
excellent grip and rider comfort.
Large-capacity, 2.6-gallon fuel
tank provides excellent range.
Dual 30-watt multireflector Krypton
headlights set back in the front cowl
add the perfect menacing appearance.
21/5W taillight is tough, and incorporates
a brakelight for added convenience.
