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cre8ive79 cre8ive79
7/3/2018 12:41 PM

I currently have a 2000 RM250. When I bought it all I thought it needed was a new clutch and a back axle, as per the seller. Well I have put those in, as well as a few other things that I ran across when I was piecing it together. It got to the point that it was out of my hands what the problem might be so I took it to someone. They informed me that pretty much the whole engine is shot.
Other than spending alot (7-800 on top of what I already put into it) for aother engine on e-bay I can get one locally from a 2001 RM250. I wanted to check with you fine people to see if this could be swapped out or if I will have to stick with the original engine?
I'm not mechanically inclined so if there is some welding, forging or anything like that that needs to be done I will have to pass.

Is this something that can be switched, putting a 2001 250 engine into a 2000 250?????

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Lucifa. Lucifa.
7/3/2018 12:46 PM

Short answer, You will need to do a bit of welding. It wont just slot in as the frame was changed on the K1.

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rob mx rob mx
7/3/2018 5:29 PM

the 01 was a whole new bike ...thats all i remember i had one and it ran like shat

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mwssquad827 mwssquad827
7/3/2018 6:42 PM

Totally new bike but if you reall wanted to it’s possible but a bolt on is a no

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FahQ FahQ
7/4/2018 6:51 AM

1996 to 2000 should bolt in.
I think the 2000 motor was better than the '01

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downard254 downard254
7/4/2018 1:14 PM

Put a 2001 CR 250 motor in it. From what I've been reading they are like 100 HP on race gas and 88 HP on pump gas.laughing laughing tongue tongue blink blink blink

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mikec265 mikec265
7/4/2018 1:28 PM
rob mx wrote:

the 01 was a whole new ...more

My 05 with just a pipe runs way better than my old highly modified 2001.
The 2001 will run a lot better with a KX500 in it.
Damb near bolts right in. Photo

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burn1986 burn1986
7/4/2018 3:48 PM
mikec265 wrote:

My 05 with just a pipe ...more

“Damn near bolts right in” - kidding right?

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mikec265 mikec265
7/4/2018 4:08 PM
rob mx wrote:

the 01 was a whole new ...more

mikec265 wrote:

My 05 with just a pipe ...more

burn1986 wrote:

“Damn near bolts right in” ...more

Had to move the bottom motor mounts about 1/4 inch and drill the cases for a larger swingarm bolt.
A few spacers, new head stay plates, and spacers for the radiator mounts. Hardest part to build today would be locating a Service Honda KX500AF pipe.
Build is on Kxriders.com. I haven't updated the build thread in a while. Changed and found some easier /better ways of doing a couple things.

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burn1986 burn1986
7/4/2018 5:01 PM
mikec265 wrote:

Had to move the bottom ...more

Wow, Sweet!

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mwssquad827 mwssquad827
7/4/2018 7:37 PM
FahQ wrote:

1996 to 2000 should bolt ...more

No way the 01+ motors are solid, the 00 motor was good tho

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mwssquad827 mwssquad827
7/4/2018 7:37 PM
rob mx wrote:

the 01 was a whole new ...more

mikec265 wrote:

My 05 with just a pipe ...more

And doesn’t damn near bolt in!! Not even close

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