KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: simonandmags on April 01, 2016, 09:35:07 PM

Title: KX125 '89 gearbox
Post by: simonandmags on April 01, 2016, 09:35:07 PM

Sorry if this has been posted elsewhere, I'm new to this forum.
Can anyone advise me if the gearbox from a '88 KX125 will fit directly into an '89 kx 125. Or if necessary what modifications need to be made.
Many thanks

Title: Re: KX125 '89 gearbox
Post by: sandblaster on April 02, 2016, 02:40:31 AM

The info I have says, "SHAFTS FIT 89-93 KX125, GEARS FIT 89-91 KX125"
I have never looked at swapping pre 89 stuff..

Title: Re: KX125 '89 gearbox
Post by: queen of spodes on April 19, 2016, 06:20:20 AM

I have a bunch of gears and shafts left from my 89 KX125 rebuild.  Hit me up if you need anything.

Title: Re: KX125 '89 gearbox
Post by: McSilverfox on September 01, 2017, 06:06:36 PM

Yeah mate, I have both 88 & 89, same! same! Just getting my 89 125 sorted. Modified 1992 kx125 54.5mmstroker crank, 89 rod and 90 yz125 flat top piston, modded head and barrel-eliminate centre power valve. 38mm carb. 139cc Rips!  Supermoist!