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1981 Kawasaki KX250 A7
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1981 Kawasaki KX250 A7

Date Added March 21, 2000

Page Views

8,090

Reviews

Read 1 Reviews
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Average Rating

95/100

Photos

1

Specifications

Yes

1981 Kawasaki KX250 A7Specifications
  Engine

Engine Type

2-stroke

Displacement

249 cc

Bore x Stroke

70 mm x 64.9 mm

Engine Features

Eyvind Boyesen's valve (patented)

Cylinder Lining

Electrofusion

Compression Ratio

7.6:1

Engine Cooling

Air
  Ignition

Spark Plug

NGK B9ev
  Carburetion

Carburetor

Mikuni VM38ss

Main Jet

170

Pilot Jet

30

Jet Needle

6F28-4

Cutaway

3.0

Air Screw

1.5 turns out from fully seated position
  Transmission

Transmission

5 - speed

Transmission Oil

10w30 (factory recommended)

Transmission Oil Capacity

900 cc

First Gear

2.133 : 1

Second Gear

1.687 : 1

Third Gear

1.388 : 1

Fourth Gear

1.16 : 1

Fifth Gear

1 : 1

Primary Reduction

2.75 : 1

Overall Drive Ratio

9.428

Final Drive

14/48
  Chassis

Frame Type

single downtube

Steering Rake (Castor)

62 degrees

Steering Trail

4.72 in

Wheelbase

59.8 in

Ground Clearance

13.9 in

Seat Height

38.8 in

Weight, dry

216 pounds

Fuel Tank Capacity

2.4 gallons
  Forks

Forks

telescopic

Fork Travel

11.8 in

Fork Preload

Internal

Fork Oil Capacity

418 cc

Fork Oil Level

180 mm
  Shock

Shock(s)

Uni-trak

Shock Travel

11.8 in

Shock Preload

External
  Wheels and Tires

Front Wheel

21 in

Rear Wheel

18 in

Brakes

Disk/Drum
  Other Information

Intended Use

Motocross

Color Scheme

Green/black

Country of Origin

Japan

1981 Kawasaki KX250 A7Reviews
gonna buy a 2006 xr650r

Joined: 02/25/2006
Posts: 5

Posted: Feb 25, 2006 8:18 PM   Back to Top
1981 kx250 (Score:1)
Power
plenty of power. not as much as the new ones, but still quite a bit. was just rebuilt! the rating for the bike is 37hp, and i'm not sure what rpm that is at.

has slightly larger top speed than my 1986 rm125 that has tall gearing, but kills it in power. the bike will not slow down if you hold the throttle on. will fly past the rm on hills
Ergonomics
bike is heavy for a 250
Suspension, Front
good for a bike of its weight. mine has been recently re-done.
Suspension, Rear
not stock, but very good compared to origional.
Brakes
front and back drums are new on my bike. work well but not as good as disks.
Comments
heavy, but managable. power is great for a heavy 250. goes good and doesn't slow down much on hills. clims anything. fast acceleration
Rating
95
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Keywords: 1981, Kawasaki, KX250, A7, 1981 Kawasaki KX250 A7, KX, 250, review, rate, opinions, photo, image, specifications, Dirt Bike Guide, GOR, georgiaoffroad.com

 







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