Author Topic: 2006 KX250F / KX500 my son rightly named "The Juggernaut"  (Read 21218 times)

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Offline sylvester

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2006 KX250F / KX500 my son rightly named "The Juggernaut"
« on: April 24, 2011, 04:19:18 AM »
This website has added one more to the list of AF conversion addicts. I can not remember where I saw the first picture of a KX500AF, I do remember saying to myself that was sick...I want one. After petitioning the wife's approval, we began the frame search. Low and behold it was like a sign from God, there it was a 2006 KX250F frame very reasonable on "the bay". One highly antisipated week later and the UPS man dropped off my highly reflective consumer of spare time. And so it begins...



( Noun: - A juggernaut is a term used to describe a literal or metaphorical force regarded as unstoppable. It is often applied to a large machine or collectively to a team or group of people working together, and often bears association with crushing or being physically destructive.
en.wikipedia.org/wiki/Juggernaut)


The next item in my scavenger hunt on the to be found list was the engine and electronics. After composing my craigslist ad, the only thing left to do was hurry up and wait. After days of sifting through spam emails and people who want to trade everything BUT what you clearly listed you would trade for, I got a real offer. Some shrude negotiation and the heart of the beast was sitting on my garage floor, a 1986 KX500. Not my first choise, but it looks very clean and the powervalve drums dont look all gummed up.

Duplicated the factory bends on the engine support tubes, and devised a crude jig, which suprised me with a very accurate bend for both pieces.



I must thank every other AF build in this forum and ones like this. I have copied some ideas, modified others and outright learned what not to do. Thank you all.
I elected to keep the engine support rails in factory appearance, mostly for the looks, but I later discovered... had I not bent the rails in, I would be inserting longer spacers to unite the motor mounts to their respective bolt slots on the cases.



Removed the cast "Y", cleaned it up for reuse.



Tack welded the cleaned and trimmed "Y" and fit the engine support rails for tack welding.



« Last Edit: April 25, 2011, 03:24:24 PM by sylvester »

Offline 1989kawasaki

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #1 on: April 24, 2011, 04:32:24 AM »
i think you should get an 89 and up motor because of parts availability .
bikes

1977 RD400
1989 CR250
1988 CR500
1978 Z50
2009 Harley super glide custom

Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #2 on: April 29, 2011, 07:01:11 PM »
Just got the frame back from Copper Fabrication, in Post Falls Idaho. Great tig welding job.




Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #3 on: April 30, 2011, 06:07:07 AM »



Radiator's showed up, right side super easy... made a bracket to relocate it up and forward just a tad. Left tank will more than likely just be a right one fliped and relocate the fittings.







Offline kxpegger

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #4 on: April 30, 2011, 09:44:17 AM »
Those frame welds look great!
North Las Vegas

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

Offline royceymon@hotmail.co.uk

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #5 on: April 30, 2011, 11:15:41 AM »
nice job ! welds look nice!

Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #6 on: April 30, 2011, 04:57:13 PM »
Thank you gentlemen, I wish I could weld that nice...my controbution was the spot welds done with a spool gun. Those guys at Cooper Fab took it in Wed at 3:00 and had it done Thurs by 12. I was impressed! The Juggernaut may be on the back burner for a bit... the wife's bike needs attention and our son's KTM 50 just went through another coil and stator. $$$$$

Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #7 on: May 05, 2011, 03:52:29 PM »
Slow progress this week, gas tank showed up and revealed to me that I welded the coil mount bracket in the wrong spot, so that comes off tomorrow. I used a heat gun and warmed up the plastic tank and pushed it up just enough to clear the spark plug. I have a regular plug in the pictures, but I will be finally using the stubby version.







Offline royceymon@hotmail.co.uk

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #8 on: May 06, 2011, 10:22:19 AM »
Hi mate , ref the plug if you look at my post jan de groot i think i posted a pic of my r8 plug very short top, youl need a special cap to suit or cut the old one down +  a loan as there very expensive !!!

Offline royceymon@hotmail.co.uk

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #9 on: May 06, 2011, 10:33:39 AM »
r8 plug!

Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #10 on: May 06, 2011, 12:31:05 PM »
That is crazy ! I will keep my eyes peeled for those. I had been told to use the NGK BR8ECM and those are $11 a piece. I think we remoulded the tank so it will clear even the regular plug.

Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #11 on: May 06, 2011, 01:09:35 PM »
Got the coil relocated on the neck.. gobbs of room now! And way more protection for it too.



Coffee after 7pm is not a good idea for sleep... but great for getting things done on the juggernaut.
Hammered out a water pump protector.



And a skid plate. :-D





This is what it looks like with the tank and shrouds on. Need to get the wife to take a second job.  :roll:


Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #12 on: May 06, 2011, 01:26:22 PM »


I would like to say a BIG THANK YOU to Paul at ALL BALLS RACING. There input and controbution to this project is greatly appricated. Please vist there website for your bearing needs, and tell them you saw it here on the Juggernaut.



Offline sylvester

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #13 on: May 07, 2011, 09:29:55 AM »
Wet rainy day outside! Looks like the perfect oppertunity to split the cases and get that wrapped up.



SHAZAM!!
Didn't even need a puller to separate the cases, I would not recomend the weighted plastic hammer tapping method...EVER. I had the three bolt puller at the ready, but I knew I was replacing the flywheel side case anyway.

A few taps and they fell apart. I know that had I been trying to save the cases and didn't have the replacement case on hand, it would have cracked for sure...murphy's law and all.



Offline royceymon@hotmail.co.uk

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Re: 2006 KX250F / KX500 my son rightly named "The Juggernaut"
« Reply #14 on: May 07, 2011, 10:01:15 AM »
i fixed the side fins to the skid plate saved a bit of weight!