Kdx 1990 kx2000 fitment

Discussion for swapping a KDX motor in a MX frame...
1fletch
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Re: Kdx 1990 kx2000 fitment

Post by 1fletch »

Got brackets and mounts tacked up ready for someone that can weld 😂, lectron pro carb sorted and fits like a glove, only issue left is the clash with the tank and cooling outlet off the top of engine which I don’t really want to start warming the tank and remoulding unless I have no other option, I may go down the route of modding or manufacture an alternative top section
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Ridea200
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Re: Kdx 1990 kx2000 fitment

Post by Ridea200 »

Looking good. Next thing you know, you'll be on the first rip.

If you do end up heating the tank, go easy. It doesn't take much.
1fletch
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Joined: 01:13 am Oct 03 2021
Country: Uk

Re: Kdx 1990 kx2000 fitment

Post by 1fletch »

Finally got 220 engine back, had a slight port for top end and a light skim of head and a vapour blaster, should have it all together in the next week and will upload pics along way
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bufftester
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Re: Kdx 1990 kx2000 fitment

Post by bufftester »

on my 220 hybrid in a 2001 KX125 frame I had to also heat and remould the tank. As Ridea200 said, take it slow with the heat gun. You don't have to have a ton of clearance, I got about 3/8 of an inch and have not had any issues with it in the last 10 years. One thing I did have issues with is the fuel line. Where yours looks like it's a little kinked right where it comes out of the petcock, mine was like that and the hose was riding on the bolt for the reed cage. Took 10 years, but this last summer turned on the gas one day and it just started dumping fuel where the bolt head had rubbed a hole in the fuel line. My fix was to go with a thicker fuel line, but just something to be aware of.
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KDXGarage
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Re: Kdx 1990 kx2000 fitment

Post by KDXGarage »

It is looking good. Consider a sleeve around the fuel hose. Let the sleeve take the abrasion and just replace the sleeve sometimes.
Thank you for participating on kdxrider.net. :bravo:
To post pictures from a device: viewtopic.php?f=88&t=24128
1fletch
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Joined: 01:13 am Oct 03 2021
Country: Uk

Re: Kdx 1990 kx2000 fitment

Post by 1fletch »

Thanks guys will look at the fuel hose once engine finished and looking to see if I can shave a bit off the top coolant connection along with warming up the tank to sort that issue .
Will keep you all updated
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