2011 kx250f conversion w/ 1988 kx500 (Newbie)

[LundMx]

Well I am a newbie to KXRiders.com I have spent time on other forums with my last build a cr500afc. Now im going to be tackling this ebay find here 

It is missing the rear shock and sub frame and gas tank, i have everything else and scored it off ebay for $500.00.. not a bad start!



it arrived last night 2/28/2013!



And here is the Donor bike! 1988 kx500!



any help will be appreciated as i tackle this endeavor, I.E. need help with air boot choice, stator flywheel choice and mouting "of Course!"

LETS GO!!

[kxpegger]

Looks like you're off to a good start! I'll be watching this thread in progress.

[agentwilliams]

Welcome. I have a similar project going, but I started with more of a 2011 250 and less of a 1994 500!

[LundMx]

The motor isnt making sense to the year, im thinking its newer than the frame.. Can anyone tell me the year of the motor? Heres a picture of the engine code

[Foxx4Beaver]

lookin like an 88 motor....scroll down to Sandblasters post for engine VIN's.

http://www.kxriders.com/forums/index.php/topic,6492.0.html

[LundMx]

Welcome. I have a similar project going, but I started with more of a 2011 250 and less of a 1994 500!

agentwilliams do you have any pics on you conversion yet? tips ect?

[LundMx]

lookin like an 88 motor....scroll down to Sandblasters post for engine VIN's.

http://www.kxriders.com/forums/index.php/topic,6492.0.html

thanks @foxx4beaver i would have to agree with you. Thanks for the info

[Foxx4Beaver]

you're welcome...lookin forward to seeing this build.

[LundMx]

Anyone know if the 88 kx500s where good motors? I heard that from 1988 on the didnt chance much so i figured i was in the clear with it... Thoughts?

[agentwilliams]

agentwilliams do you have any pics on you conversion yet? tips ect?

I haven't started cutting yet so I can't give any hands-on advice for the swap. I gutted my engine to make it lighter as I do the frame mods.
The internet is full of advice, but you can tell pretty quickly who's actually done it and who is recycling garbage advice that might not be accurate (this is not a shot at kxriders!).
I'm lucky to have a friend who is a award winning welder/welding inspector, so my advice is to team up with someone like that!

Service Honda is hard to get a pipe from. They don't order large batches, so it's tricky.

[LundMx]

I was just going to custom make a pipe because i've heard that about service honda

[LundMx]

Well as on last night i got my engine all gutted. And im getting some nice new add ons in the mail for the build! Brand new oem crank



Brand new hinson clutch assembly!

[Foxx4Beaver]

that basket's lookin sweeeeet!

[don46]

Bikes look good, and should make a great conversion. The 250f may be an 11 but the forks are for sure not off an 11, the 11 had the titanium nitrade coating on the fork tubes and had the spring adjuster  on one fork and the compression on the other, both were anaodized blue, in fact they look to be KYB from an 04-05, 06 on used Showa forks and they looked different. Those forks will probably work better than the 11 forks, since the 11 only had 1 spring you may not have been able to get a heavy enough one

[LundMx]

Bikes look good, and should make a great conversion. The 250f may be an 11 but the forks are for sure not off an 11, the 11 had the titanium nitrade coating on the fork tubes and had the spring adjuster  on one fork and the compression on the other, both were anaodized blue, in fact they look to be KYB from an 04-05, 06 on used Showa forks and they looked different. Those forks will probably work better than the 11 forks, since the 11 only had 1 spring you may not have been able to get a heavy enough one

Yea I knew that going in purchasing the bike.. "Sadly" he did include the forks from an 08 that are the ones pictured.. i found some with tripple clamps on ebay and bought those they are off a "2010 kx450f" and should bolt right on