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Author Topic: 2000 and 2002 Cylinder Difference KX250?  (Read 16856 times)

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Offline sandblaster

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #15 on: May 18, 2013, 09:34:33 AM »
Wiseco and Hot rods will have their names with raised embossing on the rod...
Post some pics of yours...
« Last Edit: May 18, 2013, 09:38:57 AM by sandblaster »
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline TwiceDead

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #16 on: May 18, 2013, 09:57:52 AM »
Hey Sandblaster!

Will do man, but batteries in my camera are dead and too f*cked up to drive to get some.

This is only one I have for now.....



https://dl.dropboxusercontent.com/u/10715533/kx250pic/100_0860.JPG

s**tty picture I know, on the other side of that rod is a stamping that says ... "263"

3 Ball bearings missing from the cage!  But WHERE THE HELL DID THEY GO?  Maybe previous owner did s**tty top end job, pulled cylinder saw a mess of shavings and maybe the bearing cleaned it up and slapped it all back together?

Thanks for your time guys, you guys are like my heroes!
« Last Edit: May 18, 2013, 10:05:18 AM by TwiceDead »
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Offline sandblaster

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #17 on: May 18, 2013, 11:05:06 AM »
263 is a bone stock 2000 KX250 crank rod.
It may be used on other years as well but I have pics of several of 2000 cranks and they all have 263 on them.
The bearings after dropping out could go out the exhaust.
Definitely should have made some noise on the way out :lol:
« Last Edit: May 18, 2013, 11:08:21 AM by sandblaster »
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline TwiceDead

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #18 on: May 18, 2013, 11:53:24 AM »
Quote from: sandblaster on May 18, 2013, 11:05:06 AM
263 is a bone stock 2000 KX250 crank rod.
It may be used on other years as well but I have pics of several of 2000 cranks and they all have 263 on them.
The bearings after dropping out could go out the exhaust.
Definitely should have made some noise on the way out :lol:

Thanks blaster!  I was going about 50mph or faster when it froze.  All I remember hearing is "PLINK!"  I guess it could have been the bearings ricochet out the exhaust!!!!  The next thing I know I'm flying across the trail on my side!!!!!!!

So messed up today (Holiday weekend in Canada), going to mic out the rod tomorrow when my vision straightens out and look in the LA sleeve and ProX catalog see if I can find a long rod to stick on this thing!
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Offline motopunk

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #19 on: May 18, 2013, 04:56:53 PM »
Quote from: TwiceDead on May 18, 2013, 09:26:17 AM
Quote from: motopunk on May 17, 2013, 05:23:58 PM
i used my hebo-hydraulic clutch over then years on my ´97 250. and now i installed it to the k5-engine, because if is all in the right direction on the kx250, is pulling the clutch with the stock-cable as easy as with the hydraulic-actuation...  :-)



Thanks Moto, I just wanted to know because when the engine froze the bike feel on its left side and totally wrecked my clutch system, need it all, Handle, Mount, Cable the works.... and it looked like a good idea to replace it with a hydraulic, afterwards I found I was spelling Magura wrong, and when I spelled it right the search went through.  Not alot of people on here have had luck with them.

I will just have to research a good setup to use, a easy pull with a good cable and replace clutch linkage on the case.


Does anyone know how to identify a stock Kawasaki Crankshaft?  Mine has absolutely no markings besides a number on the rod.  No brands at all.?  If its a wiseco or another s**tty brand, I will get a used kawasaki one from OEM-Cycle and have it rebuilt for me.

 :-D...  take a new oem-cable, make sure the laying of the cable allows that it works right , replace the seal and small bearings on the clutch-actuator arm. install it with some grease. also a little bit grease to the clutch-lever-bolt and you might be thinking you have another clutch-actuation  installed on the bike...  :wink:
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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 motopunk

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #20 on: May 18, 2013, 05:05:31 PM »
Quote from: sandblaster on May 18, 2013, 11:05:06 AM
263 is a bone stock 2000 KX250 crank rod.
It may be used on other years as well but I have pics of several of 2000 cranks and they all have 263 on them.
The bearings after dropping out could go out the exhaust.
Definitely should have made some noise on the way out :lol:

this stock-263 rod were in from 1978- 2008 i found it also in my 83 and in an  blown ´85 engine, that i parted out for my spare.
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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  ---

Offline sandblaster

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #21 on: May 18, 2013, 05:29:31 PM »
Interesting.
They used the same casting.
Although here is the part numbers for the rods
74-82 kx250 13044-5007  still available
83-84 kx250 13044-5045 not available
85 kx250 13044-5042  not available
86-93 13044-5056 still available
94-96 13032-1076 not available
97 13032-1224 still available
98-99 13032-1236 still available
00-01 13032-1263 not available
02-07 13032-1279  still available

Hot rod Rods FITS 92-04 KX250 4017
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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: 2000 and 2002 Cylinder Difference KX250?
« Reply #22 on: May 18, 2013, 05:58:02 PM »
yep... same rod but diferent cranks shoulded in the changed strokes over the years...

 i´ve directly compared the ´83 rod by a good used, but safely changed rod from my 97 kx 250 ... no diference seen and measured...
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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  ---

Offline TwiceDead

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #23 on: May 19, 2013, 05:25:00 AM »
HA! Just noticed the rod bearings numbers are the same on a few of the rods you listed!  As well!!!

ProX Connecting Rod: Part # 03-4309 is for 1978-2008!  Cool stuff!

What is this hot rods stuff like?  I think this crank is rebuildable though, it has some surface damage from being banged around the case a lil.
« Last Edit: May 19, 2013, 05:57:23 AM by TwiceDead »
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Offline motopunk

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #24 on: May 19, 2013, 07:02:09 AM »
prox makes also very good rod-kits ...  :-)
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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  ---

Offline alward25

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #25 on: May 19, 2013, 08:56:48 AM »
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"Let there be light"

Offline TwiceDead

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Re: 2000 and 2002 Cylinder Difference KX250?
« Reply #26 on: May 19, 2013, 12:06:24 PM »
Just cleaned up crank... man its in worse shape than I thought....  got chewed a bit, almost looks spalled on the steel webs.  The stuffers look ground a bit from the bearing cage and shaving banking around.










I measured the exposed crank journal on one side.  I got 0.0058" out of round.  Big and small end of the crank are nice and smooth, no damage apparent anyway.  What do you guys think, send this off for Prox rod and bearings rebuild or just go for a new crank assembly from Hotrods or get a used Kawi crank and get it rebuilt?




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