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THE TRUE STORY OF JAMES STEWART’S 2004 FACTORY KX125 TWO-STROKE


In 2004 Kawasaki had just launched its all-new KX250F. The team offered the four-stroke to James, and he tried it during the pre-season. He decided to stay with the KX125 two-stroke instead

Kawasaki KX125 Carson Brown

CARSON BROWN BUILDS A TRICK KAWASAKI KX125 TWO-STROKE


Why Carson didn’t use an KX250F aluminum frame or a 144cc kit, but did use Showa air forks and an Lectron carb

DARYL ECKLUND’S 2003 KAWASAKI KX125: FROM BASKET CASE TO BEAUTY QUEEN


How to turn a really good deal that went sour into a really great 20-year old KX125 two-stroke worth drooling over

MOTOCROSS ACTION’S 2023 TWO-STROKE BUYER’S GUIDE


Thinking about switching to a smoker? The market for two-strokes is flush with race bikes built for riders as young as 4 years old all the way up to senior citizens

MXA RETRO TEST: WE RIDE RICKY CARMICHAEL’S 1998 SPLITFIRE KX125


The MXA wrecking crew wanted to know what kind of bike a hammerhead like RC really rides. What better way to find out than by riding his race bike?

MUST READ! WE TEST THE 2005 KAWASAKI KX125


We do know that there was one kid doing pretty well on a KX125 in the AMA 125 Nationals back in 2004, but his magic didn’t translate into a lot of copycats with money

1999 Kawasaki KX125

ON THE RECORD: COMPLETE TEST OF THE 1999 KAWASAKI KX125


Everything you need to know about the 1999 Kawasaki KX125 — it’s not 19 years too late if your old one is still in the garge

ONE MAN’S QUEST TO BUILD A 2003 WORKS KX125 TWO-STROKE


When his factory mechanic friend died suddenly of a heart attack it triggered his desire to build a works KX125 — it only took ten years

MXA RETRO TEST: WE RIDE MIKE BROWN’S 2001 PRO CIRCUIT KAWASAKI KX125


The bike that Brownie raced to the 125 AMA Championship 20 years ago—and Mike is still racing today

DARYL ECKLUND GAMBLES ON A BEAT-DOWN 2003 KAWASAKI KX125


“The other MXA guys started to refer to my KX125 project bike as the ‘green unicorn.’ I told them that it would be finished soon and then they’d be sorry. I lied!”

2001 Kawasaki KX125

ON THE RECORD: THE COMPLETE 2001 KAWASAKI KX125 TEST


The age-old struggle of power versus powerband

2004 125 two-stroke shootout

ON THE RECORD: 2004 125 TWO-STROKE SHOOTOUT


The MXA wrecking crew rounded up the five prime contenders and put them through their paces. Here is what we learned about the 2004 tiddlers

NEVER HEARD OF BRIAN MOREAU? BUD RACING’S ALUMINUM-FRAMED KX125 TWO-STROKE WILL REMIND YOU


A Kawasaki-backed Grand Prix team builds an awesome KX125 two-stroke, but with a blue twist

1980 to 2000 bikes of the year

BEST TWO-STROKE DIRT BIKES FROM 1980-2000


Did you own any of these 125cc or 250cc winners throughout the two decades?

2000 Kawasaki KX125

ON THE RECORD: COMPLETE TEST OF THE 2000 KAWASAKI KX125


For 2000, the KX engineers added more inertia to the drivetrain to help the KX125 churn out a broader powerband. Unfortunately, it didn’t work as well as they hoped

2004 kawasaki kx125

ON THE RECORD: COMPLETE TEST OF THE 2004 KAWASAKI KX125


In 2004 Kawasaki broke the 35 horsepower barrier on its KX125 by making seven changes to the engine

2005 KAWASAKI KX125

ON THE RECORD: COMPLETE TEST OF THE 2005 KAWASAKI KX125


We do know that there was one kid doing pretty well on a KX125 in the AMA 125 Nationals back in 2004, but his magic didn’t translate into a lot of copycats with money

Ricky Carmichael 1998 KX125-5 copy

WE RIDE RICKY CARMICHAEL’S 1999 SPLITFIRE PRO CIRCUIT KX125


We ride the bike that Ricky raced at the 1999 Motocross des Nations in England

WE RIDE JOHNNY APPLESEED’S KX134 TWO-STROKE


Ben Graves’ 2005 Kawasaki KX134

ASK THE MXPERTS: CAN YOU HELP ME JET MY 2000 KAWASAKI KX125?


Back in 2000, we ran the stock 160 main jet, N7NW needle and 45 pilot, but dropped the 55 Powerjet for a leaner 42.

ARE YOU GETTING THE MOST OUT OF YOUR 2004 BIKE?


Get Motocross Action’s simple setup tips for your 2004 motocross bikes

2004 KAWASAKI PHOTOS AND SPECS


2004 KAWASAKI KX125 Kawasaki engineers succeeded in boosting overall power of the 2004 KX125 and revised the chassis for even sharper handling characteristics. *The combustion chamber of the liquid-cooled, 124cc, two-stroke single-cylinder engine is reshaped and compression increased to give it more low and mid-range power and crisper throttle response. *Aiding the enhanced throttle response is a new piston and ring, which has the piston ring locating pin at the rear of the cylinder to evenly distribute…

2003 KAWASAKI KX’S


MXA’S SECRET JETTING SPECS, 2003 And Back


We can’t tell you how to jet your bike. It’s a big world out there (and we don’t know you all that well). However, we can tell you what jetting we run in the MXA test fleet. Take into account that we race in a Mediterranean climate, near sea level, within sight of palm trees and never far from a Double Latte. We also run fresh 92-octane gas, work on our bikes every week, clean the filters, change pistons and rings regularly, are alert to pinging and haven’t changed oil brands in over a decade. This is t…