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1980 Kawasaki KX420 A1
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1980 Kawasaki KX420 A1

Date Added March 21, 2000

Page Views

8,102

Reviews

Read 2 Reviews
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Average Rating

80/100

Photos

1

Specifications

Yes

1980 Kawasaki KX420 A1Specifications
  Engine

Engine Type

2-stroke

Displacement

422 cc

Bore x Stroke

83 mm x 78 mm

Engine Features

reed valve

Cylinder Lining

Electrofusion

Compression Ratio

6.9:1

Engine Cooling

Air
  Ignition

Spark Plug

NGK B9ev
  Carburetion

Carburetor

Mikuni VM38ss

Main Jet

165

Pilot Jet

35

Jet Needle

6F31-3

Cutaway

3.0

Air Screw

1 turns out from fully seated position
  Transmission

Transmission

5 - speed

Transmission Oil

10w30 (factory recommended)

Transmission Oil Capacity

1000 cc

First Gear

2 : 1

Second Gear

1.454 : 1

Third Gear

1.181 : 1

Fourth Gear

0.954 : 1

Fifth Gear

0.791 : 1

Primary Reduction

0.791 : 1

Overall Drive Ratio

7.062

Final Drive

14/50
  Chassis

Frame Type

single downtube

Steering Rake (Castor)

28 degrees

Steering Trail

4.7 in

Wheelbase

59.8 in

Ground Clearance

13 in

Seat Height

37.5 in

Weight, dry

231 pounds

Fuel Tank Capacity

2.4 gallons
  Forks

Forks

38mm telescopic

Fork Travel

11.8 in

Fork Preload

Internal

Fork Oil Capacity

426 cc
  Shock

Shock(s)

Uni-trak

Shock Preload

External
  Wheels and Tires

Front Wheel

21 in

Rear Wheel

18 in

Brakes

Drum/Drum
  Power

Maximum Torque

36 ft/lbs at 6000 RPM
  Other Information

Intended Use

Motocross

Color Scheme

Green

Cost when new

$1999

Country of Origin

Japan

1980 Kawasaki KX420 A1Reviews

seth7319
Legacy Account

Reviews: 1

Registered:
Mar 3, 2003

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Posted: Mar 3, 2003 7:26 PM   Back to Top
Legacy Review (Score:1)
Power
lots of power, very fast i have done a little motor work and beaten a kx 500, cr 450, and a yz426 so u can see how fast this bike is
Suspension
this bike is hard to ride a long time it is a rough ride and it vibrates your arms numb
Brakes
brakes are desent
Comments
i love this bike it has won me a lot of money at the sand drags. FUN FUN FUN BIKE
Rating
90
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zac
Legacy Account

Reviews: 6

Registered:
Jun 6, 2001

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Posted: Jun 6, 2001 12:44 PM   Back to Top
Legacy Review (Score:1)
Power
pretty good for an 1980,all it wants to do is pull the front tire off the ground.
Suspension
the guy who we got it from put a smaller shock in it so it would not be so tall,so i dont know how it orignally
was.front is pretty good.
Brakes
not bad
Comments
VERY FAST!
Rating
70
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Keywords: 1980, Kawasaki, KX420, A1, 1980 Kawasaki KX420 A1, KX, 420, review, rate, opinions, photo, image, specifications, Dirt Bike Guide, GOR, georgiaoffroad.com

 







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