1998 kx hybrid project

Discussion for swapping a KDX motor in a MX frame...
Post Reply
User avatar
Postigo
Gold Member
Gold Member
Posts: 372
Joined: 10:09 pm Aug 12 2012
Country:
Location: Puerto Rico
Contact:

1998 kx hybrid project

Post by Postigo »

Bought a 1998 kx 125 rolling chassis today for a cheap and I want to do the conversion with a 220 engine that I have as a spare. Can I modify the 1998 swing arm or is better to go with a 1999 and up swing arm?
The Doctor says I have multiple personality desorder... But we are not agree...
User avatar
diymirage
Supporting Member II
Supporting Member II
Posts: 2909
Joined: 05:00 pm Sep 19 2011
Country:
Location: michigan

Re: 1998 kx hybrid project

Post by diymirage »

cant answer your question but its good to see your still fiddling with the bikes

if it comes out looking like your other bikes it will be a nice ride for sure


will you be stockpiling tanks for the KX as well ? :lol:
newbbewb wrote:DIYmirage has it right.


-1996 KDX 200 woods weapon (converted to 99 green body)
-1996 KDX 200 plated street toy (barney edition)
-2003 Yamaha TTR125-L (wifeys bike)
-1997 KDX 220 project bike
User avatar
Tedh98
Supporting Member II
Supporting Member II
Posts: 1576
Joined: 01:08 pm Mar 20 2009
Country:
Location: Atlanta, Georgia
Contact:

Re: 1998 kx hybrid project

Post by Tedh98 »

Same here - I dont know enough about the specifics of those years of bikes.

I would think the easiest and most predictable path would be to use the swingarm that came with the bike.

A few months ago someone tried using the KDX swingarm on the hybrid and then ran into some problems. You may be going down a similar path if you try to use the '99 swingarm (assuming it isnt a direct swap).
User avatar
Postigo
Gold Member
Gold Member
Posts: 372
Joined: 10:09 pm Aug 12 2012
Country:
Location: Puerto Rico
Contact:

Re: 1998 kx hybrid project

Post by Postigo »

Thanks for the comments guys. I will be taking photos of the project to share. :grin:
The Doctor says I have multiple personality desorder... But we are not agree...
User avatar
Postigo
Gold Member
Gold Member
Posts: 372
Joined: 10:09 pm Aug 12 2012
Country:
Location: Puerto Rico
Contact:

Re: 1998 kx hybrid project

Post by Postigo »

The Doctor says I have multiple personality desorder... But we are not agree...
User avatar
6 Riders
Gold Member
Gold Member
Posts: 2124
Joined: 12:58 pm May 01 2013
Country: USA
Location: Washington
Contact:

Re: 1998 kx hybrid project

Post by 6 Riders »

Double
Last edited by 6 Riders on 05:51 pm Jul 01 2014, edited 1 time in total.
newbbewb wrote:^what he said.
masterblaster wrote:Man 6 riders you rock.
*side note...I'm drunk, so try to read what I'm trying to say, instead of what I actually type
User avatar
6 Riders
Gold Member
Gold Member
Posts: 2124
Joined: 12:58 pm May 01 2013
Country: USA
Location: Washington
Contact:

Re: 1998 kx hybrid project

Post by 6 Riders »

Postigo wrote:Some update on the hybrid project after about four hours:
A friend with a milling machine resize the engine cases to 17mm
https://www.dropbox.com/s/p2c6t9ky1ioez ... .13.37.jpg

Then I start with the swing arm modification. there is no need to weld the 94-98 swing arm just be careful wile cutting the left side.
https://www.dropbox.com/s/yjm6ejt0ae7qj ... .23.20.jpg
https://www.dropbox.com/s/qshmhbxp3igad ... .23.28.jpg
https://www.dropbox.com/s/tid7ikevi7aml ... .23.33.jpg

As in any hybrid project I have some minor issues with the air box and pipe fitting but everything is going smooth.
https://www.dropbox.com/s/ym5hrvzha2m1s ... .45.32.jpg
https://www.dropbox.com/s/xvagfwg27kbkr ... .17.07.jpg
https://www.dropbox.com/s/h42tbisgx0yod ... .18.09.jpg
https://www.dropbox.com/s/joo6qejqgvwzx ... .17.29.jpg
newbbewb wrote:^what he said.
masterblaster wrote:Man 6 riders you rock.
*side note...I'm drunk, so try to read what I'm trying to say, instead of what I actually type
User avatar
Postigo
Gold Member
Gold Member
Posts: 372
Joined: 10:09 pm Aug 12 2012
Country:
Location: Puerto Rico
Contact:

Re: 1998 kx hybrid project

Post by Postigo »

?????
The Doctor says I have multiple personality desorder... But we are not agree...
User avatar
6 Riders
Gold Member
Gold Member
Posts: 2124
Joined: 12:58 pm May 01 2013
Country: USA
Location: Washington
Contact:

Re: 1998 kx hybrid project

Post by 6 Riders »

Postigo wrote:?????
Sorry I was fixing the links.
newbbewb wrote:^what he said.
masterblaster wrote:Man 6 riders you rock.
*side note...I'm drunk, so try to read what I'm trying to say, instead of what I actually type
User avatar
6 Riders
Gold Member
Gold Member
Posts: 2124
Joined: 12:58 pm May 01 2013
Country: USA
Location: Washington
Contact:

Re: 1998 kx hybrid project

Post by 6 Riders »

A question about this...(NOT BASHING)...Since the 95+ KDX frame is similar to the older KX frames, what is the point in the hybrid? I get it if you are using a much newer bike, an aluminum frame or hybridding an E series, but the 95 and up KDX has a pretty similar frame doesn't it?
newbbewb wrote:^what he said.
masterblaster wrote:Man 6 riders you rock.
*side note...I'm drunk, so try to read what I'm trying to say, instead of what I actually type
User avatar
Postigo
Gold Member
Gold Member
Posts: 372
Joined: 10:09 pm Aug 12 2012
Country:
Location: Puerto Rico
Contact:

Re: 1998 kx hybrid project

Post by Postigo »

Thanks for the fix, I'm doing this because already have a complete spare engine plus wiring and I found a complete rolling chassis for $150. I think is a good idea to keep my 220 as is and build a new bike with better suspension and ergos for less than $1000.
The Doctor says I have multiple personality desorder... But we are not agree...
User avatar
Postigo
Gold Member
Gold Member
Posts: 372
Joined: 10:09 pm Aug 12 2012
Country:
Location: Puerto Rico
Contact:

Re: 1998 kx hybrid project

Post by Postigo »

Did I mention the challenge and the fun factor? :mrgreen:
The Doctor says I have multiple personality desorder... But we are not agree...
Post Reply