Author Topic: 2011 kx250f conversion w/ 1988 kx500 (Newbie)  (Read 83017 times)

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Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #30 on: March 25, 2013, 02:55:44 AM »
yea, I'll try to get ahold of him. I had to jump ship on the fabricator I had been using for this project and now im totally up creek without a paddle.  :? :x
LundMx

Offline hulkteam476

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #31 on: March 25, 2013, 08:23:48 AM »
So i made more progress today  :lol: i made my measurements for the cut to move up the "Y" piece, so check it!!!


I realized that i needed to cut out A LOT!



But after a lot of trimming slowly and precisely I finally got a fit that was like a glove!




And what do ya know  :lol:!!





 So this weeks challenge is going to be bending the square tubing for the engine cradle, i need to make some more mounts obviously, but i smell premix in my soon future!
Listen ... like dad in mom ... (French-speaking) Sorry ...
Good idea, doing the edges V before the weld.
équiliber also pin at the top of Y, square

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #32 on: March 27, 2013, 04:32:19 PM »
So stoked!!!!! Sponsors are really coming through on this build for us! Thanks so much Mika Metals, T.M. Designs, DNA Wheels, DT1 Filters, CTO goggles, Tamer holeshot devices, and everyone else that has helped get it this far.. Final fabrication and welding starts next wednesday!!!!!







Stay tuned!  :roll:
LundMx

Offline brooksie

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #33 on: March 28, 2013, 11:16:16 AM »
Going to look gash with the original engine mounting holes still on the "Y". Plus you have an extra weld and heat cycle doing it that way. Will you be heat treating the frame once it has been welded?

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #34 on: March 28, 2013, 01:43:05 PM »
The holes were removed from the y piece and smoothed over.. Yes the frame will be re-heattreated after fabrication, my friend who ownes a powdercoat company is going to do it for me. Does anyone know how hot to treat it at and for how long?
LundMx

Offline brooksie

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #35 on: March 28, 2013, 02:44:39 PM »
That's a a good idea re heat treating. I also have a friend who does powder coating. It's the one thing that worries me. Now that the engine is in and things going back on, the frame rails look rather small. Not very confidence inspiring. I'm kinda wishing I'd just bought a used SH bike sometimes. Although frustrating at times, it is rewarding over coming some of the problems...

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #36 on: April 04, 2013, 03:06:12 AM »
SO WE MADE HUGE PROGRESS LAST NIGHT!! :beertime:
prepping the "Y" piece for welding



fit like a d**n glove!















time to start bending tubing!!!!



The Rails and mounts fit perfectly!!!!  :mrgreen:





tonight we weld it all together and start on the head stay! (Stay tuned!)
LundMx

Offline sandblaster

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #37 on: April 04, 2013, 03:40:29 AM »
Looking good!
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline jBernard

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #38 on: April 04, 2013, 03:50:51 AM »
those radii on the rails turned out great! i got a shop to do mine that had a HUGE $$$ bender and mine's got more creasing than that.  nice fitment there.
'09 KX500AF - never ending project
'14 KTM 300SX

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #39 on: April 04, 2013, 04:29:48 AM »
this is the bender we used : http://www.jd2.com/p-42-model-4-bender.aspx    its about a $1200.00 bender
LundMx

Offline don46

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #40 on: April 04, 2013, 05:21:20 AM »
I have the JD2 model 3 bender, it does a nice job, the benders are the cheat part, the dies are $300+ depending on the size. I used the 1" radius tubing, it ended up looking factory.
Live today, for tomorrow may never come

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #41 on: April 05, 2013, 03:37:36 AM »
So more progress made once again! check it out!  :mrgreen:



weld time!







TIME TO MOUNT THIS MOTOR!







TIME TO MOUNT THE FRONT OF THE MOTOR









LIKE A GLOVE!







AND TONIGHT WE START ON THE HEADSTAY AND PIPE!
LundMx

Offline sandblaster

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #42 on: April 05, 2013, 03:43:01 AM »
Excellent progress.
Great job!
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #43 on: April 05, 2013, 04:53:56 AM »
Ran into a snag, and a big one at that!  the kx250f radiators are too long and hit the "Y" piece... need shorter rads.. any suggestions on where to start?
LundMx

Offline LundMx

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Re: 2011 kx250f conversion w/ 1988 kx500 (Newbie)
« Reply #44 on: April 05, 2013, 05:04:29 PM »
Tonight we got started on the final stretch of the motor mounting



The head stay came out super solid!







And now to take 1/2 kx500 pipe and 1/2 cr500 pipe and make one!





LundMx