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| MSRP* |
$7,290 (Team Yamaha
Blue/White) Available from September 2011
$7,290 (White/Red) Available
from September 2011
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| Type | 250cc
liquid-cooled DOHC 4-stroke; 5 titanium valves |
| Bore x Stroke | 77.0mm
x 53.6mm |
| Compression Ratio |
13.5:1 |
| Fuel Delivery |
Keihin® FCR MX39 |
| Ignition | CDI |
| Transmission |
Constant-mesh 5-speed; multiplate wet clutch |
| Final Drive | Chain
Drive |
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|
| Suspension / Front |
KYB® Speed-Sensitive System, inverted fork: fully adjustable, 11.8-in travel |
| Suspension / Rear |
KYB® Fully adjustable single shock; 12.5-in travel |
| Brakes / Front |
Hydraulic single disc brake, 250mm |
| Brakes / Rear |
Hydraulic single disc brake, 245mm |
| Tires / Front |
80/100-21 |
| Tires / Rear |
100/90-19 |
|
|
| Length | 85.4 in |
| Width | 32.5 in |
| Height | 51.4 in |
| Seat Height | 39.0 in |
| Wheelbase | 58.1 in |
| Ground Clearance |
14.9 in |
| Fuel Capacity | 1.6
gal |
| Wet Weight*** | 227 lb |
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|
| Warranty | 30 Day
(Limited Factory Warranty) |
- New optimized engine pumps out more
power in the 8,000 to 12,000 rpm range with outstanding
throttle response, thanks to new crankshaft webs, new
vibration-reducing counterbalancer, new connecting rod, and
low-friction piston rings, as well as a new piston, piston pin,
and clip assembly that’s over 8% lighter overall than before. To
take full advantage of these advancements, there’s also new CDI
mapping and a bigger 39mm carb with freer breathing air cleaner
cage. Added to the new frame and suspension refinements, this
latest engine gives YZ250F amazing balance – a powerful,
light-handling machine with performance that’s accessible to all
levels of riders.
- The
new-for-2012 Bilateral Beam frame has revised rigidity balance
for superior cornering performance as well as great stability on
rough, high-speed straights. Beefy new front suspension
components plus revised rear shock internals and more rigidity
in the swingarm axle block area give this new machine a serious
handling advantage with light, quick steering.
- The styling emphasizes the bike’s
lightweight and nimble handling character. The sharp, horizontal
lines set the bike apart with a clean, aggressive look.
- New KYB® suspension is tuned to work
with the also new Bilateral Beam frame for unmatched handling.
- There’s no disputing the YZ250F’s
unmatched four-stroke prowess – it was the 1st four-stroke 250
motocross bike on the market, the 1st to win an international
race, the 1st to win an AMA® Supercross,® and the 1st to take an
AMA® U.S. Supercross Championship® title, as well as the first to
win an AMA® National race.
- Engine refinements, including a larger
39mm carburetor, optimized CDI, and lighter piston with a
lighter piston pin, mean YZ250F has more power as well as
exceptional throttle response in the mid-to-high speed range.
- The crankshaft web design is revised to
match the lighter piston and reduce high-rpm vibration.
- The air cleaner cage is a new design
that provides increased airflow, contributing to the excellent
throttle response in the mid-to-high speed range.
- The new muffler is designed to meet 94
dB standards.
- The new Bilateral Beam
frame with a revised balance of longitudinal, lateral, and
torsional rigidity is used for superior cornering performance,
especially while exiting turns, as well as great stability on
rough, high-speed straights.
- YZ250F
has beefy new outer fork tubes and triple clamps. The result? An
increase in the front fork assembly’s torsional rigidity for
unmatched chassis stability.
- Fork
offset has been changed from 25mm to 22mm to accommodate the new
frame design. This shortened offset increases trail length
which, in turn, contributes to excellent stability and reduces
the inertial moment of the front fork assembly for quick,
race-winning handling. The rider can take advantage of the
higher level of performance throughout the turn.
- The redesigned axle block portions of
the swingarm provide greater rigidity to further optimize the
rigidity balance between the new frame and the revised front
fork assembly.
- Front and rear
suspension settings have been optimized for the new frame
design, including a shock that uses a 16mm shaft for optimal
hydraulic flow, resulting in exceptionally smooth suspension and
great traction capability.
- New seat
foam material has an excellent cushion feel.
- Both color options feature rich-looking
black rims and a gold-color drive chain.
- The valve spring retainers are
lightweight aluminum instead of steel, and light valve spring
pressure reduces valve-opening force. Valve stem ends are
chromium-nitride coated for exceptional reliability and reduced
maintenance.
- The exhaust port is “D”
shaped instead of round. This increases velocity through the
port for excellent throttle response, while enhancing the power
feeling of the engine.
- The
low-mounted radiator is as far back as possible and the compact
oil tank is positioned to achieve greater mass centralization.
- The new 39mm carburetor has a
venturi-shaped bore, plus recalibrated jetting and an
accelerator pump. This translates to impressive response when
the rider snaps open the throttle, and contributes to superb
mid-to-high-rpm power characteristics.
- The intake boot offers a straight,
smooth tract for excellent engine breathing and more power. The
airbox is shaped to tuck neatly into the Bilateral Beam frame.
- The exhaust pipe has been carefully
tuned to optimize engine power, with a new muffler that meets 94
dB standards.
- The new Bilateral Beam frame is crafted
from a carefully chosen combination of forged and extruded
aluminum pieces, all welded together to provide unmatched
rigidity balance and superb cornering characteristics, as well
as excellent handling on rough, high-speed straights.
- The KYB® speed-sensitive front forks
deliver exceptional damping feel, responsiveness, and bump
absorption characteristics.
- The
4-way-adjustable KYB® rear shock makes the most of the latest
Bilateral Beam frame design. It’s low in the frame for excellent
mass centralization, with a 16mm shaft and new settings for
optimal hydraulic flow.
- The tank,
seat, and rear fender are flat and the relationship between
handlebars, pegs, and seat result in a natural, more forward
riding position that facilitates rider movement. The fuel tank
is placed toward the center of the bike for mass centralization.
The ProTaper® bars are 4-way adjustable, and handlebar mounts
and foot pegs optimize rider position on the chassis. Seat
cushion material is updated for great rider comfort.
- Riders have a choice of two color
options: Team Yamaha Blue/White or White/Red.
Click Here for
Factory Financing Details
Click here for pricing on non-current models |
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