| General |
|
Year
|
2018
|
2018
|
|
Manufacturer
|
Yamaha
|
Yamaha
|
|
Model Name
|
YZ250FX
|
YZ250FX
|
|
Trim Name
|
Base
|
Base
|
|
Generic Type (Primary)
|
Off-Road
|
Off-Road
|
| Engine |
|
Engine Type
|
DOHC 4-stroke; 4 titanium valves
|
DOHC 4-stroke; 4 titanium valves
|
|
Displacement
|
250cc
|
250cc
|
|
Cooling
|
liquid-cooled
|
liquid-cooled
|
|
Bore
|
77.0mm
|
77.0mm
|
|
Stroke
|
53.6mm
|
53.6mm
|
|
Compression Ratio
|
13.5:1
|
13.5:1
|
|
Fuel System
|
Keihin® fuel injection, 44mm
|
Keihin® fuel injection, 44mm
|
|
Ignition
|
TCI: Transistor Controlled Ignition
|
TCI: Transistor Controlled Ignition
|
| Drivetrain |
|
Transmission
|
Wide-ratio constant-mesh 6-speed; multiplate wet clutch
|
Wide-ratio constant-mesh 6-speed; multiplate wet clutch
|
|
Final Drive
|
O-ring chain
|
O-ring chain
|
| Suspension |
|
Front Suspension
|
KYB® spring-type fork with speed sensitive damping; fully adjustable
|
KYB® spring-type fork with speed sensitive damping; fully adjustable
|
|
Front Travel (in./cm.)
|
12.2 in
|
12.2 in
|
|
Rear Suspension
|
KYB® single shock; fully adjustable
|
KYB® single shock; fully adjustable
|
|
Rear Travel (in./cm.)
|
12.5 in
|
12.5 in
|
| Brakes |
|
Front braking system
|
Hydraulic disc, 270mm
|
Hydraulic disc, 270mm
|
|
Rear braking system
|
Hydraulic disc, 245mm
|
Hydraulic disc, 245mm
|
| Wheels & Tires |
|
Front Tires / Model
|
90/90-21 Dunlop® AT81F
|
90/90-21 Dunlop® AT81F
|
|
Rear Tires / Model
|
110/100-18 Dunlop® AT81
|
110/100-18 Dunlop® AT81
|
| Dimensions |
|
Length
|
85.2 in
|
85.2 in
|
|
Width
|
32.5 in
|
32.5 in
|
|
Height
|
50.4 in
|
50.4 in
|
|
Seat Height
|
38.0 in
|
38.0 in
|
|
Wheelbase
|
57.7 in
|
57.7 in
|
|
Rake/trail
|
26.3°/4.5 in
|
26.3°/4.5 in
|
|
Ground Clearance
|
12.8 in
|
12.8 in
|
| Capacities |
|
Fuel Capacity
|
2.0 gal
|
2.0 gal
|
| Weights |
|
Weight
|
Wet: 249 lb
|
Wet: 249 lb
|
| Warranty |
|
Warranty
|
30 Day (Limited Factory Warranty)
|
30 Day (Limited Factory Warranty)
|
|
|
|
|
