Author Topic: KX125 '89 gearbox  (Read 3675 times)

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Offline simonandmags

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KX125 '89 gearbox
« 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

Offline sandblaster

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Re: KX125 '89 gearbox
« Reply #1 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..
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline queen of spodes

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Re: KX125 '89 gearbox
« Reply #2 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.

Offline McSilverfox

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Re: KX125 '89 gearbox
« Reply #3 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!