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2016 Yamaha YZ450FX

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2016 Yamaha YZ450FX
2016 Yamaha YZ450FX

2016 Yamaha YZ450FX
2016 Yamaha YZ450FX

2016 Yamaha YZ450FX
2016 Yamaha YZ450FX

2016 Yamaha YZ450FX
2016 Yamaha YZ450FX

2016 Yamaha YZ450FX Review

2016 Yamaha YZ450FX on

The YZ450FX will prove to be the best “out of the box” GNCC race machine…


Designed for closed course cross country and enduro-type racing the all-new YZ450FX combine light, nimble handling with the power of a 450.

New for 2016, the YZ450FX comes with a world championship winning heritage. Our engineers draw on the highest level of competition for inspiration & innovations. From engine design to suspension to exterior styling, the racing performance & presence of our YZ models can be found throughout our entire competition model lineup.

/// Power
At the heart of the new YZ450FX is our proven YZ450F rearward slanted, “reversed” fuel injected engine featuring cross country oriented tuning. Electric starting is a feature many riders will appreciate and along with its wide ratio transmission, adds serious versatility to the latest member of our “FX” family. Whether competing in cross country events, vet motocross, ice racing or even snow biking, the FX is a winning choice.

/// Frame, suspension & brakes
Compact “Bilateral Beam” aluminum frame centralizes mass for exceptional handling & light weight manoeuverability. By centralizing mass, our engineers have produced a machine that feels and handles more like a 250. Add in our YZ based, easy to tune KYB “SSS” suspension and your trophy case just might need an extra shelf.


2016 Yamaha YZ450FX Key Features

All new, cross country focused model featuring Yamaha’s latest off road technology
• “Reversed” rearward slanted engine design with 4-valve cylinder head (titanium valves)
• Forward mounted fuel injection & rear exiting “wrap around” exhaust
• Electric starting
• 5-speed, wide ratio transmission
• Bilateral Beam aluminum frame with YZ based, adjustable suspension
• 18 inch rear wheel
• Adjustable handlebar
• GYTR Power Tuner ready


2016 Yamaha YZ450FX Features and Benefits

• YZ450F based, “reversed” liquid-cooled, 450cc, DOHC, 4-valve (titanium), 4-stroke, single with fuel injection and electric starting. The engine has been tuned for excellent “ride-ability & controllability” delivering a broad, easy to use power band with excellent power characteristics.
• Rearward slanted, reversed cylinder design.
– rearward slant moves a significant amount of rotating weight toward the centre of the chassis
– rearward slanted design 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 keeps fuel cooler since engine heat has less effect on incoming fuel (cooler fuel is more dense & increases power)
– design centralizes 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 12.5:1 compression ratio.
– titanium 37 mm intake valves & titanium 30.5 mm exhaust valves
– 4-valve design offers optimum flow for excellent power & torque
– compact combustion chamber design
• Lightweight titanium valves use load-reduced oval valve springs.
– titanium reduces reciprocating weight & allows for a higher rpm limit (40% lighter than steel valves)
– 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 cross country type racing / riding
• Lightweight, ceramic composite coated aluminum cylinder.
– reduced weight… no sleeve or heavy liner… plating is sprayed directly on the aluminum block
– ceramic coating insures faster, more uniform heat dissipation
– coating enhances the thin film of oil between the cylinder & piston, reducing friction & increasing power
• Cylinder is “offset” relative to the crankshaft (to exhaust side) reducing frictional losses between piston & cylinder wall during the power stroke.
• 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.
– lightweight design means faster throttle response
– reduced mechanical vibration for excellent durability
– special coating on piston skirt reduces friction
• Piston oil cooler jet nozzle directs oil to the desired portion of the cylinder, rod & underside of piston.
– reduces piston, cylinder & rod temperatures for excellent durability
• The 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
• YZ450F inspired crankshaft & connecting rod features a carburizing process for excellent durability.
• Lightweight gear driven counter balancer shaft.
– reduces vibration for improved rider comfort & reduces rider fatigue
• 5-speed, wide ratio 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)
– optimized ratios for good performance in difficult sections & solid top end speed for fast sections
– see spec page for gear ratios
• Heavy duty, multi-plate, clutch with quick access magnesium outer cover.
– clutch is designed for the rigours of cross country / enduro riding
– light lever pull for reduced hand fatigue during long rides / races
– quick access 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 cross country type 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 and the 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
– easy access GYTR Power Tuner connector port
• 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, YZ450F based, single core, dual rads.
– pre-wired for accessory electric cooling fan (fits on right side rad only)
– fan kit is available as a Yamaha Genuine accessory
• 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 to power the FI system.
• Lightweight, wrap-around exhaust system is the same as the YZ450F.
– 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, re-packable muffler (aka silencer).
– YZ450F design with minor modifications- sound output is 94 dB

• YZ450F based, compact, lightweight “Bilateral Beam” aluminum frame.
– centralizes mass for exceptional handling & manoeuvrability
– 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.
– lightweight design reduces unsprung weight for optimum 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
• YZ450F based, 48mm, adjustable, inverted, Kayaba “SSS” cartridge fork with 310mm (12.2″) of wheel travel.
– valving & settings are designed for cross country racing
– front fork adjustments include: 20-way compression damping & 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 and 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
• YZ450F based, 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 cross country style racing
– shock adjustments include: threaded spring preload, 20 -way low-speed compression damping, 2 turns of high speed compression damping & 30-way rebound damping
• 270mm floating front “wave-style” disc & compact Nissin twin piston caliper.
– wave disc design reduces weight & improves cooling (wave design offer more surface area for better cooling)
• “Shorty style” adjustable front brake lever can be adjusted to fit various hand sizes.
• 245 mm rear disc brake features a “wave-style” disc & single piston Nissin caliper & master cylinder.
• Rear caliper & lower portion of the wave 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 ¢ralizes mass for exceptional handling & a lightweight feeling
– tank can be flipped on its back without disconnecting fuel line (easy servicing under the tank)
• 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 and look of the YZ450FX
– 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
• Rugged Excel rims.
– excellent durability
– reduces unsprung weight for optimal suspension performance & handling
– 18″ rear wheel improves puncture resistance (Vs. 19″ designs)
– Front rim size is 1.60 x 21″, rear is 2.15 x 18″
– Dunlop AT81 tires

• Lightweight aluminum side stand
• Heavy duty plastic engine skid plate
• Convenient oil level sight glass
• Lightweight, extra wide foot pegs
• Folding shift lever tip helps prevent damage
• Heavy duty rubber swingarm protector
• Lightweight chain guide / support helps reduce chance of chain derailment & helps protect rear sprocket
• 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)



2016 Yamaha YZ450FX – USA Specifications/Technical Details
US MSRP Price: $8,890 – Team Yamaha Blue/White – Available from November 2015

Engine Type 449cc liquid-cooled DOHC 4-stroke; 4 titanium valves
Bore x Stroke 97.0mm x 60.8mm
Compression Ratio 12.5:1
Fuel Delivery Yamaha Fuel Injection (YFI) Keihin® 44mm
Ignition TCI: Transistor Controlled Ignition
Transmission Wide-ratio constant-mesh 5-speed; multiplate wet
Final Drive O-ring chain
Suspension / Front KYB® spring-type fork with speed sensitive
damping; fully adjustable, 12.2-in wheel travel
Suspension / Rear KYB® single shock; full adjustable; 12.5-in
wheel travel
Brakes / Front Hydraulic single disc brake, 270mm
Brakes / Rear Hydraulic single disc brake, 245mm
Tires / Front Dunlop® AT81F 90/90-21
Tires / Rear Dunlop® AT81 120/90-18
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
Ground Clearance 12.8 in
Fuel Capacity 2.0 gal
Fuel Economy n/a
Wet Weight 262 lb
Warranty 30 Day (Limited Factory Warranty)
Color Team Yamaha Blue/White

** Fuel economy estimates are based on US EPA exhaust emission certification data obtained by Yamaha.
Your actual mileage will vary depending on road conditions, how you ride and maintain your vehicle,
accessories, cargo and operator/passenger weight.
*** 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-world comparisons with other models.



2016 Yamaha YZ450FX – Canadian Specifications/Technical Details
Canada MSRP Price: $9799 CDN

4-stroke, Liquid-cooled, DOHC, 4-valve (titanium), single
450 cc
97 x 60.8 mm
Keihin 44mm throttle body F.I.
Wet sump
TCI / Electric + Kick
Wide ratio 5-speed transmission
Primary 60/23 = 2.609
Secondary 50/13 = 3.846
1st gear = 29/12 = 2.417
2nd gear = 26/15 = 1.733
3rd gear = 21/16 = 1.313
4th gear = 21/20 = 1.050
5th gear = 21/25 = 0.840

Adj. 48mm, inverted fork / 310mm (12.2″) travel
Fully adj. Monocross / 318mm (12.5″) travel
270 mm, floating disc / twin piston caliper
245 mm, disc / single piston caliper

2,165mm (85.2)
825mm (32.5″)
1,280mm (50.4″)
1,465mm (57.7″)
325mm (12.8″)
965mm (38″)
7.5 litres (1.7 Imp. gal.)
119kg (262 lb)
Yamaha Blue

Specifications, appearance, and price of product are subject to change without notice.
* MSRP does not include freight, PDI (Pre Delivery Inspection), pre-rigging (boats), or taxes. Dealer may sell for less. See your local dealer for out the door pricing.
± Fuel economy estimates are based on US EPA exhaust emission certification data obtained by Yamaha and converted into Canadian measurements. Your actual mileage will vary depending on road condition, how you ride, maintain your vehicle, accessories, cargo and operator/passenger weight.


2016 Yamaha YZ450FX – European Specifications/Technical Details
Europe/UK MSRP Price: See Dealer for pricing in GBP (On The Road inc 20% Vat)

Model Not Available in Europe

*Starting at MSRP is the manufactured suggested price and excludes delivery, setup, tax, title, license, and additional fees and expenses. Bikes may be shown with optional accessories. Final sale price determined by an authorized dealer. Specifications and MSRP are subject to change.

Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).

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