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You are here: TMW -- 2017 Motorcycle Models -- Yamaha -- 2017 Yamaha WR250F Review

2017 Yamaha WR250F Review
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2017 Yamaha WR250F
2017 Yamaha WR250F

2017 Yamaha WR250F
2017 Yamaha WR250F

2017 Yamaha WR250F
2017 Yamaha WR250F

2017 Yamaha WR250F
2017 Yamaha WR250F

2017 Yamaha WR250F
2017 Yamaha WR250F



2017 Yamaha WR250F Review

2017 Yamaha WR250F on www.Totalmotorcycle.com

The Ultimate Off-Roader...

The DNA of the 2-straight MX & SX Champ YZ250F in a light, great handling bike perfect for enduro riding through tight trails and woods.


Rightfully wrong

At Yamaha we've always liked to do things our way. Being different is what makes our bikes so special. And when you take a look at the WR250F's high-tech 'reverse' engine you can see that what may look wrong to some people is right for us!

The WR250F is a gamechanger. A front facing inlet and tuneable fuel-injection system deliver an instant hit of power. And by centralizing mass, the underseat fuel tank and top-mounted airbox design give you ultra-light handling performance.

Featuring a 6-speed gearbox with a special enduro clutch, and running with class-leading suspension, the electric-start WR250F is taking Yamaha back to the front.



Conquer Dirt


We've taken our revolutionary YZ four stroke motocross technology and applied it to the enduro world. Rearward slanted engine, reversed cylinder, forward mounted fuel injection and a compact chassis are just some of the key features found on the WR250F. Delivering light, agile handling on tight trails, the WR is also a great choice for the experienced recreational rider too.


 

 



2017 Yamaha WR250F www.Totalmotorcycle.com Key Features

" Lightweight, compact and agile 250cc 4-stroke
" Potent fuel injected engine
" Reverse cylinder head with front facing inlet
" Compact aluminium chassis with short subframe
" Enduro clutch with wide ratio 6-speed transmission
" Switch-free electric starter
" Plug in Power Tuner for easy tuning
" Centrally located 7.5 L fuel tank
" Top mounted quickly removable air filter
" Outstanding suspension performance
" Mass centralization for quick directional changes
" 18-inch rear wheel, Metzeler 6 Days Extreme tyres

1. Competition Ready
Revolutionary rearward slanted, liquid-cooled, DOHC 4-stroke power plant with 4 titanium valves based on the YZ250F™, with an added sixth gear and wide ratio transmission, among other modifications, make it perfect for Enduro competition.

2. Nimble Chassis
Nearly the same bilateral beam frame that is found on the championship winning YZ250F is used on the WR250F™. It places
the engine and fuel tank close to the center mass of the bike for extremely light and nimble handling character.

3. Fuel Injection
A Keihin® 44mm throttle body fuel injection system is tuned for Enduro riding ensures smooth throttle response and easy starting in
nearly all conditions. Plus the electric start button reduces rider fatigue.

4. Advanced Suspension
Industry leading fully-adjustable KYB® spring-type forks with speed sensitive damping and a KYB® rear shock, each tuned with Endurospecific settings.

5. Enduro- Specific Features
With a 2 gallon fuel tank, multi-function Enduro computer, 18-inch rear wheel, O-ring chain, skid plate and Enduro spec tires, the
WR250F is ready to win right out of the box.

///Performance

The latest generation YZ250F engine is the inspiration for the WR power plant. A forward mounted 44 mm fuel injection system supplies fuel to the 4-valve cylinder head, while the wrap around exhaust removes the spent charge and centralizes mass at the same time. A couple of items you won't find on a YZ250F is the WR's 6-speed transmission, electric starting and radiator cooling fan.

///Frame & Suspension

The adjustable KYB suspension found on our YZs is considered by many to be the best in the biz. So, we have added them as well as our Bilateral Beam all aluminum frame to the WR. Adjustable KYB "SSS" forks and piggyback rear shock allow you to tailor suspension settings to match weight, riding style and terrain. While the chassis design centralizes mass for fast, accurate, agile handling.




 

 

2017 Yamaha WR250F www.Totalmotorcycle.com Features and Benefits

///Key Improvements for 2017
•Larger 270 mm front disc brake with wave-style rotor & twin piston caliper

///Key Features
• Latest generation YZ250F based rear slanting engine
•Forward mounted fuel injection & mass centralizing wrap around exhaust
• Electric starting
• 6-speed transmission
•Bilateral Beam chassis
• YZ based, adjustable suspension
• 18 inch rear wheel
• Rad fan
• 35 watt headlight & LED tail light
• GYTR Power Tuner compatible (Competition Only Kit ECU is required)

///ENGINE
• YZ250F based, "reversed" liquid-cooled, 250cc, DOHC, 4-valve (titanium), 4-stroke, single with fuel injection & electric starting. The engine has been tuned for excellent "ride ability & controllability" and delivers a broad, easy to use power band with excellent power characteristics for enduro style racing or riding.
• Rearward slanted, "reversed" cylinder design.
•rearward slant moves a significant amount of rotating weight toward the centre of the chassis
•rearward slanted cylinder centralizes mass for excellent handling & a light feel
• "Reversed" engine design (FI system is front mounted, exhaust exits from rear of cylinder).
•FI throttle body & air box are front mounted, providing a straight intake path
•straight intake path into the cylinder, provides optimum fuel / air flow for excellent power
•front mounted intake design keeps fuel cooler since engine heat has less effect on incoming fuel (cooler fuel is more dense & increases power)
•design also helps centralize mass for light, agile handling
•Electric start with manual kick starter & auto decompression system. Unit can be re-started in any gear.
• There is no main ignition switch on this model.
•electric start button (RHS handlebar) activates the entire electrical system
•kill switch (LHS handlebar) if held for a few seconds shuts down entire electrical system
•design reduces weight
•Compact 4-valve cylinder head features a 13.5:1 compression ratio.
•titanium 31 mm intake valves & titanium 25 mm exhaust valves
•23.75 degree valve angle provides a compact combustion chamber
•4-valve design offers optimum flow & excellent power characteristics
•Lightweight titanium valves with load-reduced, oval valve springs.
•reduces reciprocating weight & allows for a higher rpm limit
•reduced friction (load reduced valve springs)
•faster-revving & smoother power delivery
• Automatic cam chain tensioner.
•reduces maintenance & mechanical engine noise
•special cam chain "sliders" reduce internal frictional losses
• Lightweight hollow intake & exhaust camshafts.
•provide a broad power band well suited to enduro style racing or riding
•Lightweight aluminum cylinder features a ceramic composite coating applied directly to the aluminum block.
•eliminates the liner & reduces weight
•excellent heat dissipation for consistent power delivery
•coating enhances the thin film of oil between the cylinder & piston, reducing friction & increasing power
• Special cylinder "cutaways" allow air "trapped" under the piston to enter a side chamber (or cutaway) to reduce horsepower-robbing "pumping losses."
• The crankcase also utilizes cutaways to reduce "pumping losses". The crankcase cutaways match the cutaways in the cylinder for maximum efficiency.
• Lightweight, short-skirt, forged aluminum piston uses a 2-ring design.
•single compression ring & a specially designed oil control ring that increases the surface contact area for better sealing
•2-ring design decreases sliding resistance, reduces weight & provides faster throttle response
• Piston oil cooler jet nozzle directs oil to the desired portion of the cylinder & underside of piston.
•reduces piston, cylinder & rod temperatures for excellent durability
•Crankcase features a tri-axis layout for the crank, main & drive axles.
•tri-axis design means lighter, more compact crankcases
•centralizes mass for excellent handling
•reduces the centre of gravity for a lighter feeling
•Lightweight YZ250F inspired crankshaft & connecting rod features a carburizing process for excellent durability.
•Lightweight gear driven counter balancer shaft.
•reduces vibration for improved rider comfort & less rider fatigue
• 6-speed transmission utilizes a 2-bar, floating shift guide system & a 14 mm shift shaft.
• smooth, positive shifts
•good durability in the event of a crash (14 mm shift shaft)
•Heavy duty, multi-plate, clutch with quick access magnesium outer cover.
•clutch is designed for the rigours of enduro racing / riding
•clutch action is light to reduce hand fatigue during extended events / rides
•outer cover provides fast & easy clutch access
• 44mm Keihin throttle body fuel injection system.
•10-hole injector with a 16 degree spray pattern
•maximizes fuel atomization for more complete combustion & excellent power delivery
•FI settings are specific to enduro type racing / riding
•FI benefits include automatic adjustments to insure the optimum fuel - air ratio regardless of outside air temperature & altitude
•other benefits include excellent starting & excellent throttle response
•cold start knob also doubles as an idle adjuster
•The injector spray pattern, spray direction & distance to the intake valves have been optimized. Forward mounted straight intake tract helps to maximize the benefits of the FI system & overall power output.
• Optional, compact, hand held "GYTR Power Tuner" allows tailoring of both fuel injection duration & ignition mapping.
•9- different setting points can be accessed for both fuel duration & ignition maps
•maps can be stored & shared with other Power Tuners if desired
NOTE: Competition Only Kit ECU is required for Power Tuner use • Forward mounted air box features a washable, dual-stage, foam air filter.
•No tools required to access air filter
•Wet sump lubrication system.
•reduces weight (no remote oil tank or oil lines)
•eases maintenance (easier & faster oil changes)
•Easy access "cartridge-type" oil filter.
• Lightweight, single core, dual rads with electric cooling fan.
•standard cooling fan maintains consistent engine temperatures during slow speed, technical riding
•radiator fin pitch is optimized for good air flow even at slow speeds
•Maintenance-free transistor controlled ignition (TCI).
•produces a strong spark for fast starts
•provides precise ignition timing / mapping for optimum engine performance at all rpms
•High capacity AC magneto (160 watts @ 5,000 rpm).
•Lightweight, wrap-around exhaust system based on YZ250F design.
•exits from the rear of the engine & circles cylinder body
•design ensures the optimum tuned header length
•maximizes exhaust "pulse effect" for excellent power delivery
•centralizes mass by moving weight closer to the centre of the chassis
• Lightweight aluminum / stainless steel muffler (aka silencer).
•multi-expansion design
•spark arrestor equipped

///CHASSIS/SUSPENSION
•YZ250F based, compact, lightweight "Bilateral Beam" aluminum frame.
•centralizes mass for exceptional handling & maneuverability in tight terrain
•frame offers an optimum rigidity balance between strength, rigidity & tuned flex, plus excellent shock absorbing qualities
•frame design offers excellent "rider - machine communication" (a.k.a. feedback)
•Lightweight, tapered aluminum swingarm.
•reduces unsprung weight for excellent suspension performance
•excellent rear wheel traction & control
• Lightweight detachable rear sub frame.
•constructed of square-section, lightweight aluminum pipe with no bends
•allows easy access when servicing rear suspension components
•reduces costs in the event of a loop-out
• 48mm, adjustable, inverted, Kayaba "SSS" cartridge fork offers 310mm (12.2") of wheel travel.
•valving & settings are designed for enduro racing / riding
•front fork adjustments include: 20-way compression damping and 20-way rebound damping
•optional fork springs are available through Genuine Yamaha parts.
•Fork features a twin-chamber, "Speed Sensitive System" design meaning the damper unit is in a separate structure (completely separated air & oil chambers) which prevents aerated fork oil from entering the inner damper assembly & degrading its damping abilities. Since the inner damper is pressurized, it also eliminates bubbles forming in the oil.
• Fork also features a Transfer Control Valve (TCV).
•TCV enhances damping from mid to full stroke & improves bottoming characteristics
•TCV offers more precise control throughout the full suspension stroke
• TCV is located on the upside of the spring & its function is controlled by piston speed, not piston position, hence the term "Speed Sensitive System fork".
•Large "wrap-around" plastic fork protectors.
•provide excellent lower fork tube protection
•"self-supporting" design reduces friction for smoother fork operation.
•Monocross link rear suspension features a fully adjustable Kayaba piggyback shock with 318 mm (12.5") of wheel travel.
• features separate adjusters for high- and low-speed compression damping
•shock is in-line with the center axis of the frame for excellent control
•shock valving & settings are tailored for enduro riding
•shock adjustments include: threaded spring preload, 20 -way low-speed compression damping, 2 turns of high speed compression damping and 30-way rebound damping.
• New, larger, 270 mm floating front disc brake with Nissin twin piston caliper.
•"wave" style rotor (disc) reduces weight, improves cooling (more surface area) & improves styling
•braking performance is excellent with great feel & control
•"Shorty style" adjustable front brake lever can be adjusted to fit various hand sizes.
• 245mm rear disc brake features a "wave-style" disc & single piston Nissin caliper & master cylinder.
•Rear caliper & lower portion of the wave style disc are protected by heavy duty plastic protectors.
• Lightweight, plastic resin 7.5 litre fuel tank with compact in-tank electric fuel pump, is located under the seat.
•reduces centre of gravity & centralizes mass for exceptional handling performance
•tank can be flipped on its back without disconnecting fuel line (easy servicing under the tank)
•2.0 litre reserve portion ( low fuel light will illuminate)
•Adjustable handlebar holders offer a total of 4 different handlebar positions with an adjustment range of 30mm.
•suits wide variety of rider sizes
•handlebar holders are rubber mounted for reduced vibration & improved rider comfort
•Compact body work.
•reduces weight & enhances the lightweight feel & look of the WR250F
• flat design, "minimal" bodywork allows for fast, easy rider movements & a natural riding position
• minimal design aids in keeping the body looking good (less plastic to scratch or damage)
•graphics are impregnated directly into the plastic rad shrouds & will not peel off or get damaged by pressure washing
•Flat seat design.
•provides easy rider movements
•features a "cap cover" to access the fuel cap
•non-slip seat cover material resists clogging with dirt or mud
•Lightweight digital meter assembly.
•functions include: speedometer, odometer, dual trip meters & clock in the basic mode
• "race mode" features pace management functions including; timer & distance compensating trip meter
•warning lights for engine trouble (FI system) & low fuel
•Rugged, 21" (1.60 x 21) front & 18" (2.15 x 18) rear D.I.D. rims.
•excellent durability
•reduces unsprung weight for optimal suspension performance & handling
•18" rear wheel improves puncture resistance (Vs. 19" designs)
•Premium Dunlop tires
• Stylish, slim design 35 watt headlight.
•headlight beam is adjustable up & down
•Brilliant LED rear taillight.

///DETAILS
• Rugged plastic engine skid plate
• Convenient oil level sight glass
• Lightweight, extra wide foot pegs
• Folding shift lever tip
• Lightweight chain guide / support helps reduce chance of chain derailment & helps protect rear sprocket
• Heavy duty rubber swingarm protector (chain)
• Heavy duty sealed "O" ring drive chain
• Easy access GYTR Power Tuner & Yamaha Diagnostic tool connectors
• Sealed, no spill, gel type, low maintenance battery (battery should be charged during winter storage)





 

2017 Yamaha WR250F - www.Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $8,099 USD

Engine Type 249cc liquid-cooled DOHC 4-stroke; 4 titanium
valves
Bore x Stroke 77.0mm x 53.6mm
Compression Ratio 13.5:1
Fuel Delivery Yamaha Fuel Injection (YFI) Keihin® 44mm
Ignition TCI: Transistor Controlled Ignition
Transmission Wide-ratio constant-mesh 6-speed; multiplate wet
clutch
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
travel
Brakes / Front Hydraulic single disc brake, 250mm
Brakes / Rear Hydraulic single disc brake, 245mm
Tires / Front Dunlop® MX51 80/100-21
Tires / Rear Dunlop® MX51 110/100-18
L x W x H 85.2 in x 32.5 in x 50.4 in
Seat Height 38.0 in
Wheelbase 57.7 in
Rake (Caster Angle) n/a
Trail n/a
Maximum Ground
Clearance
12.8 in
Fuel Capacity 2.0 gal
Fuel Economy** n/a
Wet Weight*** 258 lb
Warranty 30 Day (Limited Factory Warranty)
Color Team Yamaha Blue





 


 

2017 Yamaha WR250F - www.Totalmotorcycle.com Canadian Specifications/Technical Details
Canada MSRP Price: $9299 CDN

Engine
4-stroke, liquid-cooled, DOHC, 4-valve (titanium), single
Displacement
250 cc
Bore and Stroke
77 x 53.6 mm
Compression Ratio
13.5:1
Fuel Delivery
44 mm Keihin throttle body F.I.
Lubrication
Wet Sump
Ignition / Starting
TCI / Electric & Kick
Transmission
Wide ratio 6-speed transmission
primary ratio 3.353 (57/17)
secondary ratio 3.846 (50/13)
1st gear - 2.385 (31/13)
2nd gear - 1.813 (29/16)
3rd gear - 1.444 (26/18)
4th gear - 1.143 (24/21)
5th gear - 0.957 (22/23)
6th gear - 0.815 (22/27)
Final Drive
"O" ring chain
Suspension (Front)
Adjustable 48 mm inverted fork / 310 mm (12.2") wheel travel
Suspension (Rear)
Fully adjustable Monocross / 318 mm (12.5") wheel travel
Brakes (Front)
270 mm, floating wave disc / twin piston caliper
Brakes (Rear)
245 mm wave disc / single piston caliper
Tires (Front)
80/100-21
Tires (Rear)
110/100-18
Length
2,165 mm (85.2")
Width
825 mm (32.5")
Height
1,280 mm (50.4")
Wheelbase
1,465 mm (57.7")
Ground Clearance
325 mm (12.8")
Seat Height
965 mm (38")
Fuel Capacity
7.5 litres (1.7 imp. gallons)
Wet Weight
117 kg (258 lb)
Colour(s)
Yamaha Racing Blue




 

2017 Yamaha WR250F - www.Totalmotorcycle.com European Specifications/Technical Details
Europe/UK MSRP Price: £ See Dealer for Pricing in GBP (On The Road inc 20% Vat)

Engine
Engine type liquid-cooled, 4-stroke, DOHC, 4-valves
Displacement 250cc
Bore x stroke 77.0 mm x 53.6 mm
Compression ratio 13.5 : 1
Maximum power -
Maximum Torque -
Lubrication system Wet sump
Clutch Type Wet, Multiple Disc
Carburettor Fuel Injection
Ignition system CDI
Starter system Electric and kick
Transmission system Constant Mesh, 6-speed
Final transmission Chain
Chassis
Frame Semi double cradle
Front suspension system Telescopic forks
Front travel 310 mm
Caster Angle 26º 10
Trail 114 mm
Rear suspension system Swingarm, (link suspension)
Rear Travel 318 mm
Front brake Single Disc, Ø 250 mm
Rear brake Single Disc, Ø 245 mm
Front tyre 90/90-21 54M
Rear tyre 130/90-18 69M
Dimensions
Overall length 2,165 mm
Overall width 825 mm
Overall height 1,280 mm
Seat height 965 mm
Wheel base 1,446 mm
Minimum ground clearance 325 mm
Wet weight (including full oil and fuel tank) 118 kg
Fuel tank capacity 7.5 litres
Oil tank capacity 1.1 litres



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