KX Riders

Maintenance & Technical => KX500 Aluminum Frame Conversion (AFC) => Topic started by: cutting torch on March 03, 2009, 01:07:29 PM

Title: It fits better than I thought....
Post by: cutting torch on March 03, 2009, 01:07:29 PM
'87 KX500 in a '92 KX250 frame:

(http://i21.photobucket.com/albums/b260/torch3/IMG_0091-1.jpg)

(http://i21.photobucket.com/albums/b260/torch3/IMG_0092-1.jpg)

The swingarm pivot and bottom case mounts line up, and leave the exhaust port pretty well placed in the frame, although the top pipe springs might be a bit tight. I'll have to cut the forward case mounts off the frame and relocate them, but thats easy.

I do wonder though, as much as a bike engine is bolted to the frame, is the engine helping the frame, or is the frame helping the engine?
 :?

torch
Title: Re: It fits better than I thought....
Post by: sintax on March 11, 2009, 08:03:25 AM
yea, i felt the same thing when i first got my 500 engine in the 250 frame. Just kinda looked like it was supposed to be there. Looks good! Wrap her up. Hopefully it does not take you 3 months like it took me.
Title: Re: It fits better than I thought....
Post by: cutting torch on March 11, 2009, 11:48:04 AM
3 months? Surely you jest! I'm thinking more like a year or more.

My goal with this project is have the end result as close as I can reasonably get to a new bike in appearance and function. That means there will be a lot of resto work added to the load, and also some suspension revalving.

torch
Title: Re: It fits better than I thought....
Post by: AJ on March 20, 2009, 10:20:54 AM
'87 KX500 in a '92 KX250 frame:

(http://i21.photobucket.com/albums/b260/torch3/IMG_0091-1.jpg)

(http://i21.photobucket.com/albums/b260/torch3/IMG_0092-1.jpg)

The swingarm pivot and bottom case mounts line up, and leave the exhaust port pretty well placed in the frame, although the top pipe springs might be a bit tight. I'll have to cut the forward case mounts off the frame and relocate them, but thats easy.

I do wonder though, as much as a bike engine is bolted to the frame, is the engine helping the frame, or is the frame helping the engine?
 :?

torch

the engine,  in this type of frame,
is certainly used as a intregal part and brace in the frame.


think of it,  as a 65 pound frame brace.
with the frame specifically designed for using it.