Author Topic: Starting A KX500AF Build  (Read 8973 times)

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Offline KTMMDG

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Starting A KX500AF Build
« 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
« Last Edit: April 04, 2011, 02:10:34 PM by KTMMDG »

Offline KTMMDG

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Re: Starting A KX500AF Build
« Reply #1 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.

Offline KTMMDG

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Re: Starting A KX500AF Build
« Reply #2 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...





Offline Danger4u2

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Re: Starting A KX500AF Build
« Reply #3 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
KX 500 Rider

Offline KTMMDG

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Re: Starting A KX500AF Build
« Reply #4 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.
« Last Edit: April 13, 2011, 11:00:03 AM by KTMMDG »

Offline kxpegger

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Re: Starting A KX500AF Build
« Reply #5 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.
North Las Vegas

"05" RMZ450, "08" KX500AF "11" KTM 450SX-F "12" KTM 250SX "15" KTM450SX-F

Offline Charlie500

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Re: Starting A KX500AF Build
« Reply #6 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


Did you buy that 500 off Sacramento Craigslist? It looks familiar!
2014 KX 450 Bark-Buster

Motorrad

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Re: Starting A KX500AF Build
« Reply #7 on: April 13, 2011, 07:24:27 PM »
When You do decide to do this.. I would be interested in buying your current pipe.....

Offline Danger4u2

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Re: Starting A KX500AF Build
« Reply #8 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.

KX 500 Rider

Offline KTMMDG

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Re: Starting A KX500AF Build
« Reply #9 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.

Offline jrkawiracer

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Re: Starting A KX500AF Build
« Reply #10 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

Offline tschisi

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Re: Starting A KX500AF Build
« Reply #11 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?
2004 kx125
1990 kx500 (sold)