Author Topic: kdx engine in klx frame  (Read 3494 times)

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Offline kdx Geoff

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kdx engine in klx frame
« on: July 30, 2014, 06:14:38 pm »

l would like a twin shock vinduro bike at some point and thought l would end up with a PE.

A couple of weeks ago l came across a klx frame and wondered if the '83-'85 kdx200 engine would slot into the frame. Space shouldn't be an issue and they're both single downtube frames but lm not sure about the rear engine swingarm area.

Anybody seen or done that conversion ?

Cheers

Geoff

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Offline 80-85 husky

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Re: kdx engine in klx frame
« Reply #1 on: July 30, 2014, 07:21:32 pm »
funny you should think this way Geoffrey as it has crossed my mind a number of times as great combo. the klx frame handles well but the motors wouldn't pull the top off a rice custard... the kdx 2fitty is the king of 80 - 85 enduro motors

measure up my son measure up....

Offline kdx Geoff

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Re: kdx engine in klx frame
« Reply #2 on: July 30, 2014, 07:39:02 pm »


200 John  :)
The 250 frame splits and the exhaust comes straight out the front of the barrel.

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Offline Nathan S

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Re: kdx engine in klx frame
« Reply #3 on: July 30, 2014, 07:42:31 pm »
It would have to be a good thing.
Question is: will it be better than a KDX200?

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Offline Rookie#1

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Re: kdx engine in klx frame
« Reply #4 on: July 30, 2014, 07:51:29 pm »

Question is: will it be better than a KDX200?

Probably not, but it will certainly be rarer  ;D ;)
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Offline 80-85 husky

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Re: kdx engine in klx frame
« Reply #5 on: July 30, 2014, 08:12:48 pm »
only interested in a 250 :(

Offline kdx Geoff

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Re: kdx engine in klx frame
« Reply #6 on: July 30, 2014, 08:42:32 pm »
It would have to be a good thing.
Question is: will it be better than a KDX200?


Doesn't need to be better. Just looking to end up with a twin shock green 2 stroke kdx that's not from the US :)




 
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Offline GMC

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Re: kdx engine in klx frame
« Reply #7 on: July 30, 2014, 08:46:47 pm »
Keep in mind that part of the reason the KLX has a reputation as a good handler is because the motor is docile
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Offline odd1

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Re: kdx engine in klx frame
« Reply #8 on: July 30, 2014, 08:56:46 pm »
I thought it was the riders !!!

Offline 80-85 husky

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Re: kdx engine in klx frame
« Reply #9 on: July 30, 2014, 10:36:57 pm »
its called the xr 200 formula.. everyone can ride an xr 200 fast ;D ;D ;D

Offline GMC

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Re: kdx engine in klx frame
« Reply #10 on: July 31, 2014, 03:42:24 pm »
I thought it was the riders !!!

Yeah, I can run with that ;D

A twin shock KDX 175 has already been done, see VMX mag cover several issues back
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Offline kdx Geoff

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Re: kdx engine in klx frame for a kdx200 twin shock
« Reply #11 on: June 08, 2015, 05:38:39 pm »

A couple of months ago l bought 2 rather tired klx's for my twin shock kdx200 project. They're remarkably heavy to move around the shed until the motor comes out !

There's plenty of space in the frame for the little 200 motor. The rear engine mount using the swingarm bolt works for the 200 engine in the klx frame. The bolt diameter is correct but there's a small mount width difference of 6mm I'll need to sort.


 

There's a minor issue of clearance for the kickstart knuckle and there might be an issue with the airbox/carb alignment but plenty of room in the frame to work with. It looks like the sprocket alignment is pretty close too.

Time to make some engine mounts.
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Offline 80-85 husky

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Re: kdx engine in klx frame
« Reply #12 on: June 11, 2015, 06:51:48 pm »
that looks excellent. don't be scared to space the rear mount forward to solve the kick-starter issue. making mounts is easy