Author Topic: need some fork help please  (Read 3135 times)

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Offline sportracer07

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need some fork help please
« on: February 16, 2014, 11:57:39 AM »
Hey guys i have a set of forks here that im trying to put on my 85 kx 250,, the triple clamps and bearings bolt up fine and i have the caliper and everything. only thing is idk what year bike the forks are off of.  All they say on them is kx 125l. Anybody know how to tell what year they are so i can get fork seals??

Offline alward25

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Re: need some fork help please
« Reply #1 on: February 16, 2014, 12:14:44 PM »
Measure the chrome part to see how many millimeters they are and then search KX 125s until you find the right mm size, post some pics, we might be able to tell which vintage they are
"Let there be light"

Offline sandblaster

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Re: need some fork help please
« Reply #2 on: February 16, 2014, 12:15:15 PM »
Do the forks have blue uppers?
I don't know any that has kx125 but I know of some that a X125-L and X125-R.
They came in 43mm.
Let me know.
« Last Edit: February 16, 2014, 12:17:10 PM by sandblaster »
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline sportracer07

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Re: need some fork help please
« Reply #3 on: February 17, 2014, 11:18:40 AM »
Sandmaster you are right, i cleaned them off a little better and they have x125-l on them. Not kx 125l sorry about that. Do you know what year, years they will fit?

Offline sandblaster

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Re: need some fork help please
« Reply #4 on: February 17, 2014, 12:36:05 PM »
Do they have blue uppers?
If so, they could be 91-93 kx125, kx250, or kx500. Maybe even the kdx250.
USD - X125-R X125-L - 43MM CHROME OD - C/L 37.25" - BLUE - UPPER 52MM - LOWER 56.6MM - BRAKE MOUNT C/L 60.5MM - AXLE CLAMP 22MM ID
To narrow it down further, take a look at your front axle and compare with the measurements here:
http://www.oem-cycle.com/forum/viewtopic.php?f=49&t=186&p=354#p354
I don't have the axle measurements for the 92 and older but I can get them.
The important thing is, if you want fork seals there are many other years that will fit.
Seal 43MM X 55MM X 9.5/10.5/11
I don't have seal fitment but here is a eBay seller that has fitment listed for the seals you need:
http://www.ebay.com/itm/NEW-Front-Fork-Oil-Seal-Set-43-mm-x-55-mm-x-9-5-10-mm-Motorcycle-Seals-/400651982633?pt=Motorcycles_Parts_Accessories&fits=Year%3A1992|Model%3AKX&hash=item5d48b81729&vxp=mtr
« Last Edit: February 17, 2014, 01:00:37 PM by sandblaster »
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motopunk

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Re: need some fork help please
« Reply #5 on: February 17, 2014, 06:42:24 PM »
he told in his other thread that it is a 91- fork..  :wink: 

 you have only to measure out the diameter of the lower fork tubes to find out which seals would fit.
 1990 is 41mm fork.
 91- 93: 43mm with blue legs,
 94-95 (kx125/250) kx500 -96: 43mm with legs in champagner colour . same color like the 46mm fork that came in 96 to 125/250 and 97 to the 500

what is stamped on the lower side of the upper fork clamps? kx125 , kx250 or kx 500 ?  125 upper clamps are one peace with the handlebar clamps ... 250 and 500 have the handlebar clamps bolted on the upper fork clamp  ...
big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

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Offline sandblaster

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Re: need some fork help please
« Reply #6 on: February 17, 2014, 07:46:27 PM »
Too many threads for me to keep track of  :-P

Good night  :wink:
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motopunk

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Re: need some fork help please
« Reply #7 on: February 17, 2014, 08:09:35 PM »
Too many threads for me to keep track of  :-P

Good night  :wink:


is the man of steel now getting old??  :-D  :wink:

its 10 o´clock in the morning here, time to figure out what to eat for lunch today...  8-) 
big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---