YZ250FX - Yamaha Motorsports

YZ250FX - Yamaha Motorsports
1 . Innovative Hare Scramble/GNCC
® Engine Design
Based on the championship-winning YZ250F™, featuring Yamaha’s
revolutionary rearward slanted, liquid-cooled, DOHC 4-stroke power
plant with forward-positioned straight downdraft symmetrical intake,
and with an added sixth gear and wide ratio transmission, the
YZ250FX™ is an “out-of-the-box” Hare Scrambles/GNCC®
competition machine.
2 . H i g hh-- S p e c E n g i n e
The engine is based on the 2017 YZ250F, and includes all the same
race-winning features: an updated cylinder head, lightweight forged,
two-ring, flat-top piston; a shorter, more durable piston pin with
diamond like carbon (DLC) coating; a revised piston oil jet, and
advanced connecting rod, crankshaft, and counterbalancer designs.
Together, the result is improved peak power, power delivery and overall
3 . 6 - Speed Transmission
A wide-ratio 6-speed transmission is used to insure the right gear is
available for the wide variety of terrain found in cross-country racing.
4 . Tuned Chassis
Nearly the same bilateral beam frame that is found on the
championship winning YZ250F is used on the YZ250FX. The forged
section at the swingarm pivot and engine mounting brackets help
develop nimble lightweight feeling in the tight technical terrain while
still providing stability in fast sections.
5 . Advanced Suspension
Industry-leading, fully adjustable KYB® spring-type fork with speed
sensitive damping features revised valving for improved suspension
feel and balance. The linkage type rear suspension features a KYB rear
shock with settings optimized for cross country racing.
Team Yamaha Blue
$7,999 MSRP
Manufacturer's Suggested Retail Price (MSRP) shown. Does not include tax, title, prep or destination charges. Actual prices set by dealer.
6 . Cross Country Features
With the electric starting system, a 2-gallon fuel tank, rugged plastic
skid plate, 18-inch rear wheel and XC racing tires, the YZ250FX is
ready to win right out of the box.
GYTR® Power Tuner Ready
Accessory GYTR Power Tuner lets owners adjust air/fuel mixture and
ignition timing maps to match engine performance characteristics to
the rider and race conditions in a matter of seconds with the push of a
few buttons.
Engine Type
250cc liquid-cooled DOHC 4-stroke; 4 titanium
Bore x Stroke
77.0mm x 53.6mm
Compression Ratio
Fuel Delivery
Keihin® fuel injection, 44mm
TCI: Transistor Controlled Ignition
Wide-ratio constant-mesh 6-speed; multiplate wet
Final Drive
O-ring chain
Suspension / Front
KYB® spring-type fork with speed sensitive
damping; fully adjustable, 12.2-in travel
Suspension / Rear
KYB® single shock; fully adjustable, 12.5-in
Brakes / Front
Hydraulic disc, 270mm
Brakes / Rear
Hydraulic disc, 245mm
Tires / Front
90/90-21 Dunlop® AT81F
Tires / Rear
110/100-18 Dunlop® AT81
85.2 in x 32.5 in x 50.4 in
Seat Height
38.0 in
Light and Strong Aluminum Frame
An all-aluminum bilateral beam frame similar to the YZ250F provides
strength, lightness and durability for race conditions, and comes
stadard with a rugged plastic skid plate.
57.7 in
Rake (Caster Angle)
4.5 in
Advanced Suspension
Industry favorite KYB® fully adjustable spring-type forks with speed
sensitive damping and Kashima Coat™ and a KYB® rear shock, also
with Kashima Coat™ and featuring a large 50mm piston. Both the fork
and rear shock are tuned specifically for cross country racing, with fork
seals designed for improved durability in harsh conditions.
Ground Clearance
12.8 in
Fuel Capacity
2.0 gal
Wet Weight
249 lb
30 Day (Limited Factory Warranty)
Team Yamaha Blue
Unique Engine Tuning
The revolutionary, rearward slanted, high-performance liquid-cooled,
4-stroke, 4-valve, fuel-injected engine has been tuned to challenge for
race victories in the highly competitive GNCC® and Hare Scrambles race
Mass-Centralized Powerplant
The position of the engine moves the rotational mass of the cams
towards the center of the bike which allows for a straight shot, down
draft intake and straight exhaust port for maximized engine
performance. Additional, this layout keeps the air box up high, out of
dust and mud/water.
Fuel Injection
The fuel injection system uses 3D mapped electronic control for the
fuel and ignition timing that are optimized for cross-country racing.
6-Speed Gearbox
A wide-ratio 6-speed transmission is used to insure the right gear is
available for the wide variety of terrain found in cross-country racing.
Electric Start
Push button electric start makes starting the YZ250FX easy and
Practical Touches
Quick-adjust clutch, wide 55mm platform footpegs, four-position
rubber- mounted handlebar clamps, aluminum handlebars, and a side
stand are standard for added rider convenience. The YZ250FX is also
pre-wired for an optional radiator fan for the most grueling conditions.
Easy Servicing
The air cleaner cover helps prevent contact with the quick-release
quarter-turn Dzus® air box fasteners for tool-less access to the air filter.
Thanks to a WR®-style fuel level sensor in the tank, the YZ250FX
includes a convenient fuel level along with an engine warning
indicator on the handlebar.
Sealed O-ring Chain
High-quality O-ring chain is tough and durable.
For Accessories, visit shopyamaha.com
Purpose-Built Tires
Special cross-country racing Dunlop® AT81 tires are used to maximize
traction while delivering excellent wear.
270mm Front Brake
Large 270mm front disc brake coupled with high-performance pad
material offers outstanding machine control and performance, with
exceptional stopping power and controllability.
Specifications subject to change without notice. This document contains many of Yamaha's valuable trademarks. It may also contain trademarks belonging to other companies. Any references to other companies or their
products are for identification purposes only, and are not intended to be an endorsement. © 2017 Yamaha Motor Corporation, U.S.A. All rights reserved.
*** Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as
applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is
useful in making real
real--world comparisons with other models.
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