Kawasaki KX250F: review, history, specs

From BikesWiki.com, Japanese Motorcycle Encyclopedia

Class: motocross

Production: 2004+

Predecessor: Kawasaki KX250 (2-stroke)

Related: Suzuki RM-Z250

Models
Kawasaki KX250F

(KX250-N)

2004-2005

(North America, Europe, Japan, Australia)

Kawasaki KX250F

(KX250-T)

2006-2008

(North America, Europe, Japan, Australia)

Kawasaki KX250F

(KX250-W)

2009

(North America, Europe, Japan, Australia)

Kawasaki KX250F

(KX250-X)

2010

(North America, Europe, Japan, Australia)

Kawasaki KX250F (KX250-N) 2004-2005
Kawasaki KX250F (KX250-T) 2006-2008
Kawasaki KX250F (KX250-W) 2009
Kawasaki KX250F (KX250-X) 2010
Models
Kawasaki KX250F

(KX250-Y)

2011-2012

(North America, Europe, Japan, Australia)

Kawasaki KX250F

(KX250-Z)

2013-2016

(North America, Europe, Japan, Australia)

Kawasaki KX250F

(KX252-A)

2017-2019

(North America, Europe, Japan, Australia)

Kawasaki KX250

(KX252-B)

2020

(North America, Europe, Japan, Australia)

Kawasaki KX250F (KX250-Y) 2011-2012
Kawasaki KX250F (KX250-Z) 2013-2016
Kawasaki KX250F (KX252-A) 2017-2019
Kawasaki KX250 (KX252-B) 2020
Models
Kawasaki KX250

(KX252-C)

2021-2024

(North America, Europe, Japan, Australia)

Kawasaki KX250

2025+

(North America, Europe, Japan, Australia)

Kawasaki KX250 (KX252-C) 2021-2024
Kawasaki 2025+

Kawasaki KX250: electronic equipment

  • Kawasaki TRaction Control (KTRC) - 2025+
  • Launch Control Mode - 2016+
  • Power Modes - 2025+
  • Smartphone Connectivity - 2025+

History

History
Year Country Name / Frame / Engine
2004 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250-N1

2005 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250-N2

2006 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250T6F

2007 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250T7F

2008 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250T8F

2009 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250W9F

2010 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250XAFA, KX250XAFB

2011 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250YBF

2012 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250YCF

2013 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250ZDF

2014 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250ZEF

2015 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250ZFF

2016 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX250ZGF

2017 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX252AHF

2018 North America, Europe, Japan, Australia Name: Kawasaki KX250F

Code: KX252AJF

2019 North America, Europe, Japan, Australia Name: Kawasaki KX250

Code: KX252AKF

2020 North America, Europe, Japan, Australia Name: Kawasaki KX250

Code: KX252BLF

2021 North America, Europe, Japan, Australia Name: Kawasaki KX250

Code: KX252CMFNN

2022 North America, Europe, Japan, Australia Name: Kawasaki KX250

Code: KX252CNFNN

2023 North America, Europe, Japan, Australia Name: Kawasaki KX250

Code: KX252CPFNN

2024 North America, Europe, Japan, Australia Name: Kawasaki KX250
2025 North America, Europe, Japan, Australia Name: Kawasaki KX250

Specifications

Kawasaki KX250F: specs.

Specifications
DIMENSIONS Overall length 2170 mm / 85,4 in

2160 mm / 85,0 in – KX250-T

2172 mm / 85,5 in – KX252-A-B

2180 mm / 85,8 in – KX252-C

2190 mm / 86,2 in – 2025+

Overall width 840 mm / 33,1 in – KX250-N

820 mm / 32,3 in – KX252-B-C, 2025+

825 mm / 32,5 in – KX252-A

Overall height 1270 mm / 50,0 in

1265 mm / 49,8 in – KX252-C, 2025+

Seat height 960 mm / 37,8 in – KX250N-T

955 mm / 37,6 in – KX250W-X, 2025+

945 mm / 37,2 in – KX250Y-A

948 mm / 37,3 in – KX252-B

950 mm / 37,4 in – KX252-C

Wheelbase 1475 mm / 58,1 in – KX250-N, KX250Y-Z

1469 mm / 57,8 in – KX250-T

1470 mm / 57,9 in – KX250W-X

1478 mm / 58,2 in – KX252-A

1480 mm / 58,3 in – KX252-B

1485 mm / 58,4 in – KX252-C, 2025+

Ground clearance 340 mm / 13,4 in – KX250-N, KX250W-X, 2025+

372 mm / 14,6 in – KX250-T

330 mm / 13,0 in – KX250Y-Z

324 mm / 12,7 in – KX252-A

333 mm / 13,1 in – KX252-B

335 mm / 13,2 in – KX252-C

Dry weight
Curb (wet) weight 102,5 kg / 226 lbs – KX250N-T

104,3 kg / 230 lbs – KX250-W

105,1 kg / 232 lbs – KX250-X

105,7 kg / 233 lbs – KX250-Y

106,2 kg / 234 lbs – KX250-Z

104,5 kg / 230 lbs – KX252-A

105,2 kg / 232 lbs – KX252-B

107,2 kg / 237 lbs – KX252-C

108 kg / 238 lbs – KX252-C (2023-2024)

109,5 kg / 241 lbs – 2025+

FRAME Type Perimeter (aluminum)
Front suspension, travel Inverted telescopic fork (fully adjustable), 300 mm / 11,8 in – KX250-N

Inverted telescopic fork (fully adjustable), 315 mm / 12,4 in – KX250T-Z

Inverted telescopic fork (fully adjustable), 310 mm / 12,2 in – KX252-A

Inverted telescopic fork 48 mm (fully adjustable), 314 mm / 12,3 in – KX252-B-C

49 mm inverted telescopic fork (fully adjustable), 305 mm / 12,0 in – 2025+

Showa Separate Function front Fork (SFF) – 2011+

Rear suspension, travel Swingarm Uni-Trak with mono-shock (fully adjustable), 310 mm / 12,2 in

Swingarm Uni-Trak with mono-shock (fully adjustable), 316 mm / 12,4 in – KX252-B-C

Swingarm Uni-Trak with mono-shock (fully adjustable), 307 mm / 12,1 in – 2025+

Front tire size 80/100-21 51M
Rear tire size 100/90-19 57M

110/90-19 63M - 2025+

Front brake Single disc, 250 mm, 2-piston caliper – KX250N-Z

Single disc, 270 mm, 2-piston caliper – KX252-A+

Rear brake Single disc, 240 mm, 1-piston caliper

Single disc, 250 mm, 1-piston caliper – KX252-B

Fuel capacity 7,5 l / 2,0 US gal – KX250-N

7,2 l / 1,9 US gal – KX250-T, KX250-Y

8,0 l / 2,1 US gal – KX250W-X

6,1 l / 1,6 US gal – KX250-Z

6,4 l / 1,7 US gal – KX252-A-B

6,2 l / 1,6 US gal – KX252-C, 2025+

Trail 110 mm / 4,3 in – KX250-N

119 mm / 4,7 in – KX250-T

122 mm / 4,8 in – KX250-W

118 mm / 4,6 in – KX250-X, 2025+

120 mm / 4,7 in – KX250-Y

126 mm / 5,0 in – KX250-Z

123 mm / 4,8 in – KX252-A

130 mm / 5,1 in – KX252-B-C

Fuel economy / consumption
ENGINE Type Liquid-cooled 4-stroke
Cylinder arrangement Single cylinder
Bore & Stroke 77,0 x 53,6 mm

78,0 x 52,2 mm – KX252-B+

Displacement 249 cm³ (15,25 cu-in)
Compression ratio 12.6:1 – KX250-N

13.5:1 – KX250-T, KX250-Y

13.2:1 – KX250W-X

13.8:1 – KX250-Z

13.4:1 – KX252-A

14.2:1 – KX252-B

14.1:1 – KX252-C

14.0:1 – 2025+

Valve train Chain driven DOHC, 4 valves
Max. power 43,0 hp (31,6 kW) / 11000 rpm – KX250-N

Launch Control - from 2016

Max. torque 28,7 Nm (2,9 kg*m) / 8500 rpm – KX250-N
Acceleration 0 to 100 km/h (0-60 mph)
Top speed
CARBURETION SYSTEM Type Carburetor, 1x Keihin FCR37 – KX250N-W

Carburetor, 1x Keihin FCR-MX37 – KX250-X

Fuel Injection, 1x Keihin 43 mm – KX250-Y+

Fuel Injection, 1x Keihin 44 mm – KX252-B+

ID
DRIVE TRAIN Clutch Wet, multi-plate, cable operated

Wet, multi-plate, hydraulic operated – KX252-C

Transmission 5-speed constant mesh
Final drive Chain
Primary reduction 3.350
Final reduction 3.692

3.846 – KX250-Y+

Gear ratio

I

II

III

IV

V


2.142

1.785 (1.769-KX250W-X; 1.750-KX250-Y+)

1.444

1.200 (1.235-KX250-Y+)

1.052 (1.045-KX250W+)

ELECTRICAL Ignition AC-CDI – KX250N-X

DC-CDI – KX250-Y+

Alternator
Battery capacity

Images

Kawasaki KX250F: images, gallery.

Kawasaki KX250F
Kawasaki KX250F
Kawasaki KX250F
Kawasaki KX250F

Videos

Kawasaki KX250F: video.

Load video
YouTube
KX250F 4-Stroke

Manuals

Kawasaki KX250F: manuals, parts, microfiches.

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