Yamaha YZ450FX: review, history, specs


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Class: enduro / cross country

Production: 2016+

Related: Yamaha YZ450F

Models
Yamaha YZ450FX

(All markets)

2016-2018

Yamaha YZ450FX

(North America, Australia)

2019-2020

Yamaha YZ450FX

(North America, Australia)

2021+

Yamaha YZ450FX (2016-2018)
Yamaha YZ450FX (2019-2020)
Yamaha YZ450FX (2021+)

History

History
Year Country Name / Frame / Engine
2016 All markets Name: Yamaha YZ450FX
2017 All markets Name: Yamaha YZ450FX
2018 All markets Name: Yamaha YZ450FX
2019 North America, Australia Name: Yamaha YZ450FX
2020 North America, Australia Name: Yamaha YZ450FX
2021 North America, Australia Name: Yamaha YZ450FX

Specifications

Yamaha YZ450FX: specs.

Specifications
DIMENSIONS Overall length 2165 mm / 85,2 in

2175 mm / 85,6 in – YZ450FX (2019+)

Overall width 825 mm / 32,5 in
Overall height 1280 mm / 50,4 in – YZ450FX (2016-2018, 2021+)

1270 mm / 50,0 in – YZ450FX (2019-2020)

Seat height 965 mm / 38,0 in

955 mm / 38,8 in – YZ450FX (2019+)

Wheelbase 1465 mm / 57,7 in

1480 mm / 58,3 in – YZ450FX (2019+)

Ground clearance 325 mm / 12,8 in

320 mm / 12,6 in – YZ450FX (2019+)

Dry weight
Curb (wet) weight 119 kg / 262 lbs – YZ450FX (2016-2018)

116 kg / 256 lbs – YZ450FX (2019-2020)

115 kg / 254 lbs – YZ450FX (2021+)

FRAME Type Semi double cradle (aluminum)
Front suspension, travel 48 mm inverted telescopic fork (fully adjustable), 310 mm / 12,2 in
Rear suspension, travel Swingarm with mono-shock (fully adjustable), 317 mm /12,5 in
Front tire size 90/90-21

80/100-21 – YZ450FX (2019+)

Rear tire size 120/90-18
Front brake Single disc, 270 mm, 2-piston caliper
Rear brake Single disc, 245 mm, 1-piston caliper

Single disc, 240 mm, 1-piston caliper – YZ450FX (2021+)

Fuel capacity 7,6 l / 2,0 US gal

8,3 l / 2,2 US gal – YZ450FX (2019+)

Trail 114 mm / 4,5 in

117 mm / 4,6 in – YZ450FX (2019+)

Fuel economy / consumption
ENGINE Type Liquid-cooled 4-stroke
Cylinder arrangement Single cylinder
Bore & Stroke 97,0 x 60,8 mm
Displacement 449 cm³ (15,2 cu in)
Compression ratio 12.5:1 – YZ450FX (2016-2018)

12.8:1 – YZ450FX (2019-2020)

13.0:1 – YZ450FX (2021+)

Valve train Chain driven DOHC, 4 valves
Max. power
Max. torque
Acceleration 0 to 100 km/h (0-60 mph)
Top speed
CARBURETION SYSTEM Type Fuel Injection, 1x 44 mm Keihin

Fuel Injection, 1x 44 mm Mikuni – YZ450FX (2019+)

ID
DRIVE TRAIN Clutch Wet, multi-plate, cable operated
Transmission 5-speed
Final drive Chain
Primary reduction
Final reduction
Gear ratio

I

II

III

IV

V


ELECTRICAL Ignition TCI
Alternator A.C. magneto
Battery capacity

Images

Yamaha YZ450FX: images, gallery.

Yamaha YZ450FX
Yamaha YZ450FX
Yamaha YZ450FX

Videos

Yamaha YZ450FX: video.

First Ride 2019 Yamaha YZ450FX - Motocross Action Magazine

Manuals

Yamaha YZ450FX: manuals, parts, microfiches.

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