KX Riders

Maintenance & Technical => KX500 Aluminum Frame Conversion (AFC) => Topic started by: KTMMDG on April 01, 2011, 09:26:14 AM

Title: Starting A KX500AF Build
Post by: KTMMDG on April 01, 2011, 09:26:14 AM
I'm thinking about doing an AF for my 1999 kx500. A few Questions to start with, I'm stuck between KX250 or the KX450 what year seems to be best? are there any RED ALERTS I should be aware of during the Conversion?

1999 KX500
(http://i1176.photobucket.com/albums/x337/ke7vas/006-2.jpg)
Title: Re: Starting A KX500AF Build
Post by: KTMMDG on April 05, 2011, 05:48:45 PM
I think I'm going to go with the KX450 frame. I probably wont start the build till this Winter. I'll revisit this Topic when I do.
Title: Re: Starting A KX500AF Build
Post by: KTMMDG on April 11, 2011, 07:15:28 PM
Couldn't Find a good rolling chassis  :cry: but I did manage to get a hold of a KX450 frame, subframe, swingarm, Plastics, 2 seats, radiator, 1 front tire, 2 rear tires, linkage, guards, and a few other odds and ends...

(http://img251.imageshack.us/img251/7926/054hg.jpg) (http://img251.imageshack.us/i/054hg.jpg/)
(http://img152.imageshack.us/img152/2923/056mf.jpg) (http://img152.imageshack.us/i/056mf.jpg/)
(http://img718.imageshack.us/img718/4231/058en.jpg) (http://img718.imageshack.us/i/058en.jpg/)
Title: Re: Starting A KX500AF Build
Post by: Danger4u2 on April 12, 2011, 12:51:50 AM
Looking at your K5 the first thing I can tell you is "gas" or I should say lack of gas on an AFC bike.  You will miss that oversized tank  I went with the '08 KX450F.  I bought an IMS over sized tank but you have to heat and form it to fit.  It's a fine art to do that.  I gave up on the over sized tank because you will loose much of the capacity when you form it to fit the spark plug.  Other than that you will love a K5 engine in a more modern chassis.  J-Fab is the go to guy for conversion parts to make it a simplistic change over.  http://www.kxriders.com/forums/index.php/topic,6869.15.html
Title: Re: Starting A KX500AF Build
Post by: KTMMDG on April 13, 2011, 10:58:12 AM
Alright thanks. I'm gonna try and do all the work myself. But I'll give JFAB a buzz if I decide otherwise.
Yes I'm gonna miss that over sized tank. but I do have a few ideas for a tank. when I reach that point  I'll be sure to post what I come up with.
Title: Re: Starting A KX500AF Build
Post by: kxpegger on April 13, 2011, 12:57:45 PM
Alright thanks. I'm gonna try and do all the work myself. But I'll give JFAB a buzz if I decide otherwise.
Yes I'm gonna miss that over sized tank. but I do have a few ideas for a tank. when I reach that point  I'll be sure to post what I come up with.

Clarke "08" 3.2 gallon KX450F tank fits well and you will have more clearance for the shorty spark plug than the OEM tank.
Title: Re: Starting A KX500AF Build
Post by: Charlie500 on April 13, 2011, 06:45:26 PM
I'm thinking about doing an AF for my 1999 kx500. A few Questions to start with, I'm stuck between KX250 or the KX450 what year seems to be best? are there any RED ALERTS I should be aware of during the Conversion?

1999 KX500
(http://i1176.photobucket.com/albums/x337/ke7vas/006-2.jpg)

Did you buy that 500 off Sacramento Craigslist? It looks familiar!
Title: Re: Starting A KX500AF Build
Post by: Motorrad on April 13, 2011, 07:24:27 PM
When You do decide to do this.. I would be interested in buying your current pipe.....
Title: Re: Starting A KX500AF Build
Post by: Danger4u2 on April 14, 2011, 12:08:39 AM
Alright thanks. I'm gonna try and do all the work myself.

I was suggesting his parts, you would still be doing all the work.

Title: Re: Starting A KX500AF Build
Post by: KTMMDG on April 14, 2011, 11:39:35 AM
Yes I traded for it.
As far as selling the stuff I don't need or want from my bike. we'll see when we get there.
I know I meant I'm gonna try and do all the work including fabricating parts.
Title: Re: Starting A KX500AF Build
Post by: jrkawiracer on April 14, 2011, 01:59:09 PM
i would be interisted in buying one of the seats from the 450 if u wanted to sell one
Title: Re: Starting A KX500AF Build
Post by: tschisi on September 08, 2011, 09:57:25 PM
Another question:
You?ve got the rear fender and seat(?) of the 500, but i guess the fuel tank is from a newer 125 oder 250, right?
Do you know if the newer fuel tanks also fit the frame?