Yes, I did search. XR fork springs ;-)

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Yes, I did search. XR fork springs ;-)

Postby jeopardy98 » 03:48 pm Feb 06 2008

So I read about 100 threads on the XR fork springs and I still didn't find a definitive answer to my question. This was the closest I found:

>|<>QBB<
Indawoods wrote:Xr600 93-00 : .41
Xr600 85-92 : .42
Xr650L 93-02: .44
Xr400 00-02 : .40
Xr400 96-99 : .38

It’s the 1996-99 0.38kg/mm XR400 springs that are interchangeable and commonly used in 1995 to 2005 KDX200/220s

The stock 1995 to 2005 KDX 200/220's springs are commonly used to replace the 1989 to 1992 KDX springs, they are a good fit and give much more support in these models.

The Stock KDX spring rate depends on the year of the KDX. The 89-92 KDX's had a .29 spring rate stock. The 95-04 KDX's have a .35 spring rate.

If you have the older KDX200s like the 93-94s with the 41mm forks, you may be able to use the springs from the Xr250s. Same diameter forks.

Xr250 96-02 : .35
Xr250 90-94 : .40
Xr250 86-89 : .38



*I make no guarantees as to fit...


Okay so my question is... Will the .40 XR400 springs from 2000-2002 work in an "E" series KDX200 or are the fork diameters different? Can I only use 95-05 KDX200/220 springs?
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Postby 2001kdx » 04:27 pm Feb 06 2008

E series KDX is 41mm tubes, H series KDX are 43.
The XR250 is 41mm and the XR400 is 43mm. I beillieve they're all interchangable, but I'm not quite sure. I'm sure an answer will surface shortly.
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Postby jeopardy98 » 05:34 pm Feb 06 2008

Well then I'm very glad I didn't buy a 43mm fork seal driver for my 92 then. I thought the manual told me 43 but I guess not. So still, does anyone know if the springs have to be the same diameter or is 2mm going to make a big difference?
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Re: Yes, I did search. XR fork springs ;-)

Postby kdxquebec » 05:37 pm Feb 06 2008

>|<>QBB<
jeopardy98 wrote:
Okay so my question is... Will the .40 XR400 springs from 2000-2002 work in an "E" series KDX200?


Yes. Honda Xr400 2000-2002 .40kg front fork springs can be used for 89-94 kdx200 models with conventionals forks.

Do you know what springs are alerady installed in your bike?
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Postby kdxquebec » 05:51 pm Feb 06 2008

>|<>QBB<
2001kdx wrote:E series KDX is 41mm tubes, H series KDX are 43.


:shock:

So why a H series top clamp fit on a E series forks?

E series (conventionnals ) have 43mm forks.
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Postby Indawoods » 06:13 pm Feb 06 2008

They both are 43's...
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Postby jeopardy98 » 06:22 pm Feb 06 2008

I thought so. Thank you for clarifying. I do not have any idea what springs are in there now. Is there a number that I can look for to see if anyone has already upgraded them. I'm pretty sure they are stock just because of the stock spacers still being present.

Anyone have a set of .40 XR400 springs lying around? :mrgreen:
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Postby kdxquebec » 06:36 pm Feb 06 2008

>|<>QBB<
jeopardy98 wrote:
Anyone have a set of .40 XR400 springs lying around? :mrgreen:


Yes. In my forks :grin:

Sounds good. Try to find a used set. With the help of m0rie, I bought mine on thumpertalk.com classifieds ads.
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Postby jeopardy98 » 06:48 pm Feb 06 2008

The ones in your forks won't do me any good :butthead: I'll check out the ads at TT. Ebay is empty currently.
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Postby 2001kdx » 05:02 pm Feb 07 2008

Ah yes, that's correct, they're both 43mm..... BTW, the XR springs are good from '00-'04. '04 is when they discontinued the bike. (Unless I'm wrong again)
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Yes, I did search. XR fork springs ;-)

Postby Leo » 08:12 am Aug 22 2013

Done it ; 2001 KDX200 with XR400 97 0.38 springs OME air chamber [95mm] 5weight fork oil, spacer length 28mm now . 75 kilo rider works well its a bush bike gnarly pipe ,forestry roads ,logging tracks wildlife tracks or blazen a track.I could play with 5-10ml less on the oil level yet out of curiosity but another time . Unlike my searching its all there all of it , exept to say after 2000 xr spring rates got 0.40 and progressed to 0.42 more recently I reckon like many this is a good budget mod and with the right bars the bike dont plow any more its pretty balanced . My sack is in comfort . :rolleyes: OME 0.35 replaced. These work well in pre 95 KDX as uprate for they to progressed in spring rates through the years from very low rates but longer springs, but my ome springs have dibs on them from my hand it down pressure 15yo,classic,lol. 2 strokes are a hoot to all. Fill em with spring length not steel tube . OME spacers are 90mm long. I got one still.
Last edited by Leo on 04:54 pm Aug 22 2013, edited 1 time in total.
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Yes, I did search. XR fork springs ;-)

Postby terminatr » 09:50 am Aug 22 2013

I am selling a pair of springs from XR400. PM me if interested.
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Re: Yes, I did search. XR fork springs ;-)

Postby KDXohio » 06:41 pm Aug 22 2013

you'll probably have better luck getting views posting in the forsale section
1990 KDX200 FMF Fatty, Answer VFC silencer, Boysen rad valve, Wiseco Piston, KX125-J series KYB USD fork conversion, J series front brake assembly, air-box snorkel removed, Acerbis Headlight, KX450F Front fender, Pro Taper RM bend bars, ASV front Brake lever, MSR Clutch perch and lever, RB Head mod, 36mm PWK carb, Trail Tech Kickstand.
1983 Yamaha IT490 - Tag bars, .40kg fork springs, DG silencer, Decompression Valve, YZ Aluminum Kicker
1982 Yamaha IT175
1998 RM250 - 12oz FWW, full FmF exhst
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Re: Yes, I did search. XR fork springs ;-)

Postby 4x4fab » 11:37 am Aug 29 2013

terminatr wrote:I am selling a pair of springs from XR400. PM me if interested.

I may be interested.
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Re: Yes, I did search. XR fork springs ;-)

Postby 4x4fab » 11:39 am Aug 29 2013

KDXohio wrote:you'll probably have better luck getting views posting in the forsale section

I'm just down the road from you in Hamilton. I ride an e series too.
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