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1986 Kawasaki KX125 E1
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1986 Kawasaki KX125 E1

Date Updated June 29, 2001

Page Views

23,167

Reviews

Read 8 Reviews
Write a Review

Average Rating

93/100

Photos

2

Specifications

Yes

1986 Kawasaki KX125 E1Specifications
  Engine

Engine Type

2-stroke

Displacement

124 cc

Bore x Stroke

56 mm x 50 mm

Engine Features

reed valve

Compression Ratio

9.35:1

Exhaust

steel, aluminum silencer

Exhaust Level

102 decibels

Engine Cooling

Liquid
  Ignition

Ignition Type

CDI

Spark Plug

B10eg
  Carburetion

Carburetor

Mikuni VM35ss

Main Jet

340

Pilot Jet

35

Needle Jet

R-8

Jet Needle

6J7

Cutaway

3

Fuel Level

1-3 mm
  Transmission

Transmission

6 - speed

Transmission Oil

10w30 (factory recommended)

Transmission Oil Capacity

600 cc

First Gear

2.307 : 1

Second Gear

1.75 : 1

Third Gear

1.4 : 1

Fourth Gear

1.181 : 1

Fifth Gear

1.041 : 1

Sixth Gear

0.954 : 1

Primary Reduction

3.5 : 1

Final Drive

12/47
  Chassis

Frame Type

tubular, single downtube

Steering Rake (Castor)

27.5 degrees

Steering Trail

4.6 in

Wheelbase

57.5 in

Ground Clearance

15.4 in

Seat Height

36.6 in

Weight, dry

196 pounds

Weight, wet

212 pounds

Fuel Tank Capacity

2 gallons
  Forks

Forks

KYB 43mm conventional

Fork Travel

11.8 in

Fork Compression

8 positions

Fork Preload

Internal

Fork Oil Capacity

550 cc

Fork Oil Level

178 mm
  Shock

Shock(s)

KYB

Shock Travel

13.4 in

Shock Rebound

20 positions

Shock Compression - Low-speed

12 positions

Shock Compression - High-speed

4 positions

Shock Preload

External
  Wheels and Tires

Front Wheel

21 in

Rear Wheel

18 in

Brakes

Disk/Disk
  Power

Maximum Horsepower

25.7 hp at 11500 RPM

Maximum Torque

12.7 ft/lbs at 10000 RPM
  Other Information

Intended Use

Motocross

Color Scheme

Green

Cost when new

$2049

Country of Origin

Japan

Comments

First Kawasaki model with lower link rear suspension and removable subframe. The 250 and 500 of the same year still had the old dog-bone strut.

1986 Kawasaki KX125 E1Reviews
Rocafella21604

Joined: 08/05/2007
Posts: 6
Location: Pennsylvania

Posted: Aug 6, 2007 12:06 PM   Back to Top
1986 Kawasaki KX 125 E1 (Score:1)
Power
No low end power. You get your real power when its in high revs like powerband. Thats when the horses kick in.
Ergonomics
Feels comfortable to ride
Suspension, Front
Good front suspension no problems yet.
Suspension, Rear
It has a soft rear suspension but its still good better if your a light rider.
Brakes
Good front disk brakes but they where pretty fast.
Great rear drum brake works exceptionally well for a drum brake.
Comments
Overall to me this bike has been great no problem as long as you just maintain it correct.
Rating
95
Rider Height / Weight / Skill
5'7" / 120 / Intermediate
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crazydirtbiker
Legacy Account

Reviews: 2

Registered:
Jul 29, 2003

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Posted: Jul 29, 2003 9:05 PM   Back to Top
Legacy Review (Score:1)
Power
The power is pretty good. Has pretty good mid and top. Bottom isn't spectacular but ok.
Suspension
The suspension isn't really good. The forks aren't bad but they were soft. I put heavier springs in them and that helped a little bit. The rear shock wasn't awesome. But again not terrible for its year. But i could bottom out the suspension and i only weigh 140.
Brakes
Brakes were pretty good. It had both from and back disc brakes so it was fairly good but the pads wore away really fast.
Comments
This bike right now is pretty old to be driven hard. The frame is really bad it brakes easy. And the suspension isn't that good. But this would be a bike for someone that is just getting into riding or doesn't ride really hard.
Rating
90
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KX Kowboy
Legacy Account

Reviews: 10


Location: north texas


Registered:
Feb 22, 2003

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Posted: Feb 22, 2003 10:51 PM   Back to Top
Legacy Review (Score:1)
Power
excellent power,all mid and top with a hard hit,this was the only 125 of 86 to have a real pro power band,the others were trying to get low end out of their 125's,responded to mods real good(raced a dmc modified one once,that bike would be very competetive today,motor wise)
Suspension
forks were harsh when new then too soft once broken in,rear was ok on big hits and for heavy riders,needed a revalve
Brakes
front was good but the back was way too powerful and had no feel to it
Comments
liked this bike in it's day but i wouldn't buy a used one,if ya do inspect the frame,wheels,and triple clamps real good
Rating
90
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sambo_eddo
Legacy Account

Reviews: 1


Location: north texas


Registered:
May 1, 2002

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Posted: May 1, 2002 4:32 PM   Back to Top
Legacy Review (Score:1)
Power
Pretty good in high RPM's but dont try to climb a hill unless you got a running start.really kicks in about 3rd gear.
Suspension
front seems to be really stiff and rear is a little on the soft side. I weigh about 200lbs so that is also a factor.
Brakes
the front absolutely sucks. it will stop you but it wont snap and grab. The pads wear down quickly too. The rear brake is perfect. the best Ive ever had on any bike. they always work no matter the conditions.they snap and bring you to a dead stop.
Comments
This bike would be a 100 but because of the front brake and the head gasket its about a 95. Good bike if your not a hardcore racer. If your a weekend warrior that isnt extremely experienced than this bike is for your. great for trails or jumping.
Rating
95
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chomper
Legacy Account

Reviews: 2


Location: north texas


Registered:
Jul 7, 2001

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Posted: Aug 25, 2001 5:56 PM   Back to Top
Legacy Review (Score:1)
Power
Pretty good, the real power only comes in when you hit the power band in the high revs. Once the bike is in powerband it rides very smooth. Not much low end power but great bike for racing around in high revs.
Suspension
Really good, it takes a bit of getting usedt to, but if you're flying over bumps then the best thing to do is keep the front wheel light, other wise the rear suspension throws you around all over the place.
Brakes
Ordinary, mine didn't come with the disc brakes, just the drums, but they worked alright.
Comments
All round a good bike for people who are learning to ride a two-stroke motocross because although it has a lot of power, its controlable if you have a bit of an idea. Very good and pretty reliable, when buying second hand thogh, check piston and rings because they wear out very quickly. Great for low-key racing or trail riding.
Rating
90
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Hinds
Legacy Account

Reviews: 12


Location: north texas


Registered:
Apr 5, 2001

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Posted: Apr 14, 2001 8:50 PM   Back to Top
Legacy Review (Score:1)
Power
weak bottom, decent midrange, ok top, always had the tendancy to get really hairy when it hit powerband.
Suspension
8 out of 10
Brakes
First Japanese bike to run the double disk, and man, did it ever suck! I think that Kawasaki spent too much time on the rear when they should have put more into the front, could wear through a set of pads every three races.rear brakes are really good though.
Comments
Me and my buddies all drive 86 or 87 Japanese 125's, and this is by far the worst. The owner put 500 dollars into pistons, reeds, and a nice pipe so he could take me, and my stock 86 CR 125 would dust him bottom to top, on or off of the track.The leson is, Buy a honda, come in first. Why is that so hard to understand?
Rating
90
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number35
Legacy Account

Reviews: 25


Location: Central California


Registered:
Dec 9, 2000

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Posted: Dec 9, 2000 4:34 AM   Back to Top
Legacy Review (Score:1)
Power
Real good power for an old bike. I have owned two and I raced the last one in 1996! Came in fourth in 125 Pro class! Real good power, I guess the KIPS power valve did it's thing.
Suspension
Real good suspension. Sophisticated to. It has externally adjustible preload on the forks! High and low speed compression damping on the rear shock! First year for Kawaski to have the rear linkage as we now know it.
Brakes
Good brakes. Nice rear disc, but it would skip around a lot.
Comments
A real break though bike. A future collectible? Aluminum sub frame, Rear disc, proper rear linkage, Power valve, Hi Low compression, externally adj. fork preload, angular styling. It was the future bike. Like the decal said "works replica" It was.
Rating
90
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mstembri
Legacy Account

Reviews: 18


Location: Norcross, GA


Registered:
May 1, 1997

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Posted: Aug 1, 2000 9:00 AM   Back to Top
Legacy Review (Score:1)
Power
The 86 made a bit more top-end power than my 85 KX125. Id say both bikes were equally fast.
Suspension
The forks werent spectacular, but worked ok. Shock was decent.
Brakes
Excellent front and rear
Comments
This was the first bike Id owned with a rear disk. I loved it!
Rating
100
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Keywords: 1986, Kawasaki, KX125, E1, 1986 Kawasaki KX125 E1, KX, 125, review, rate, opinions, photo, image, specifications, Dirt Bike Guide, GOR, georgiaoffroad.com

 







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