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Author Topic: KX500/250 or KDX250 motor  (Read 7047 times)

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Offline Nathan S

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KX500/250 or KDX250 motor
« on: September 22, 2010, 07:01:07 PM »
I've got an early 90s KX500 roller.
I'm seriously thinking of fitting a small 4-stroke motor to it, but before I take to the frame with the angle grinder, I figured it would be worth trying to get a suitable Kawi motor for it.

Would even seriously consider an early water cooled KDX200 motor, but would really prefer a 250 or 500.

If you've got something that you think might be useful, then gimme a yell and we'll see what we can work out.

Cheers,
Nathan.
04000 23847

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Offline BAHNZY

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Re: KX500/250 or KDX250 motor
« Reply #1 on: September 22, 2010, 07:18:04 PM »
Few of these rollers, along with CR500's kicking around at the moment, a result of people having a desperate need to build a 500cc alloy framed "AF" bike.
Have passed up on two of these rollers in the last couple of months at crazy low prices.
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Offline Nathan S

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Re: KX500/250 or KDX250 motor
« Reply #2 on: September 22, 2010, 08:29:19 PM »
Yeah, tell me about it - KX500 motors on US ebay are silly money.

This I why I'm happy to look at 250s.
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Offline Lozza

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Re: KX500/250 or KDX250 motor
« Reply #3 on: September 22, 2010, 10:44:42 PM »
Quote from: Nathan S on September 22, 2010, 07:01:07 PM
I've got an early 90s KX500 roller.
I'm seriously thinking of fitting a small 4-stroke motor to it, but before I take to the frame with the angle grinder, I figured it would be worth trying to get a suitable Kawi motor for it.

Put the angle grinder down , step away from the grinder , hands behind your head, lay face down........................
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Offline Nathan S

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Re: KX500/250 or KDX250 motor
« Reply #4 on: September 22, 2010, 11:07:54 PM »
Well find me a real motor for the bloody thing, then.

Centre exhaust port, entry for the carb offset to the left.
The spare air cooled KDX200 motor and the IT250J motor that are here, both have side exhaust ports - I'm willing to deal with engine mounts, but I'm not going to hack into structural bits of the frame (like the downtubes).

In contrast, an XL185 motor needs the original bottom mounts removed from the frame and some adaptor brackets made up.
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Offline Davey Crocket

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Re: KX500/250 or KDX250 motor
« Reply #5 on: September 23, 2010, 07:22:17 AM »
Not only are you not content with winding us up with the pre 95 stuff, but now you want to start cutting and molesting the f#@kers up!!....Nathan...we have to get you some help!! ;D
« Last Edit: September 23, 2010, 10:05:52 AM by Davey Crocket »
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Offline vandy010

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Re: KX500/250 or KDX250 motor
« Reply #6 on: September 23, 2010, 08:40:27 AM »
an XL185 donk in a KX500 chassis ???
the other way round might make a good flat tracker but this way round is...
well...
um?....
will you be putting a basket on the handlebars?
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Offline Nathan S

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Re: KX500/250 or KDX250 motor
« Reply #7 on: September 23, 2010, 09:43:02 AM »
Hadn't thought of the basket, but its already got the streamers out of the handgrips.

Way I'm figuring it, the bikes owes me SFA - if I had a strong desire to own a KX500 then I'd have bought one a few years back when they were selling for not-ridiculous money.

If I can't get a suitable Kawa 2T motor for it, then fitting a $500 Chinese XL185 style motor:
1. Turns a dead bike into a rideable one, rather than have it sit around doing nothing.
2. Makes for a better, faster XR250 style of bike.
3. Is no loss, as a pre-95 bike is historically irrelevant anyhow.


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Offline GMC

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Re: KX500/250 or KDX250 motor
« Reply #8 on: September 23, 2010, 09:55:24 AM »
What about a BSA motor ::), seen it done to a Maico once.
Or a Triumph motor ::)
or....

"then fitting a $500 Chinese XL185 style motor:
1. Turns a dead bike into a rideable one, rather than have it sit around doing nothing.

I couldn't think of anything more useless to ride around.



Didn't I tell you the other week Nathan, Focus, Focus,

Magnifying glass effect, find a goal and create tunnel vision for it.

Your running off on too many tangents.

A couple more kids should see you right
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Offline vandy010

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Re: KX500/250 or KDX250 motor
« Reply #9 on: September 23, 2010, 09:59:29 AM »
XT500 donk ;)
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Offline Davey Crocket

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Re: KX500/250 or KDX250 motor
« Reply #10 on: September 23, 2010, 10:08:42 AM »
He's just messing with our heads now.
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Re: KX500/250 or KDX250 motor
« Reply #11 on: September 23, 2010, 11:31:25 AM »
Quote from: GMC on September 23, 2010, 09:55:24 AM
A couple more kids should see you right

But stop at 4. Because I just read that every 5th child born in the world is Chinese..........  :-\
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Offline Lozza

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Re: KX500/250 or KDX250 motor
« Reply #12 on: September 23, 2010, 12:29:35 PM »
Quote from: Nathan S on September 22, 2010, 11:07:54 PM
Well find me a real motor for the bloody thing, then.

Centre exhaust port, entry for the carb offset to the left.

DT or WR 200, can get them from Japan cheap enough, if I tune the tits off it should  stop any more 4T shitter talk ;D
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Offline vmx42

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Re: KX500/250 or KDX250 motor
« Reply #13 on: September 23, 2010, 12:51:32 PM »
If you can't find a KDX200 engine, you aren't trying too hard. There must be a million of them out there…

then hand it onto Lozza…
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Offline shorelinemc

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Re: KX500/250 or KDX250 motor
« Reply #14 on: September 23, 2010, 01:37:45 PM »
Quote from: Nathan S on September 23, 2010, 09:43:02 AM
Hadn't thought of the basket, but its already got the streamers out of the handgrips.

Way I'm figuring it, the bikes owes me SFA - if I had a strong desire to own a KX500 then I'd have bought one a few years back when they were selling for not-ridiculous money.

If I can't get a suitable Kawa 2T motor for it, then fitting a $500 Chinese XL185 style motor:
1. Turns a dead bike into a rideable one, rather than have it sit around doing nothing.
2. Makes for a better, faster XR250 style of bike.
3. Is no loss, as a pre-95 bike is historically irrelevant anyhow.

point no 1 the difference is? will again be a dead bike sitting around doing nothing ;D

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