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Author Topic: 2003 KX 250 SF Conversion  (Read 152333 times)
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umberto
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First Ride 02-02-19


« Reply #360 on: April 23, 2019, 05:25:00 AM »

Look what popped up on Motocross Actionís Instagram story this morning.


* 755C0CB3-95A0-48D3-AEDC-290E17C8F630.jpeg (1163.82 KB, 1266x1827 - viewed 80 times.)
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
sandblaster
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« Reply #361 on: April 23, 2019, 08:40:13 AM »

Ohhhhh... Aaaahhhhhhh.....  cool

It's amazing how much attention this group has been given by various magazines..
I wonder what's next  wink
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.
umberto
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« Reply #362 on: April 23, 2019, 08:58:28 AM »

They featured the bike itself in a separate post later.

https://www.instagram.com/p/BwmVbZEpHQM/?utm_source=ig_share_sheet&igshid=1evmr7xonj4dn

Itís my favorite shot from the shoot.


* 63DACAE0-94A0-4A7E-970F-6BC0A87FEEDD.jpeg (4312.55 KB, 3600x2400 - viewed 75 times.)
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
umberto
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« Reply #363 on: April 23, 2019, 08:59:42 AM »

Ohhhhh... Aaaahhhhhhh.....  cool

It's amazing how much attention this group has been given by various magazines..
I wonder what's next  wink
Oh Iím sure you KX Guru guys have something cooking.  grin
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
umberto
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« Reply #364 on: April 23, 2019, 02:38:27 PM »

MXA added me to the two stroke Tuesday spotlight on their website.  It's been a good day for Goliath.

https://motocrossactionmag.com/two-stroke-tuesday-1988-kx500-engine-shoed-into-kx250-chassis/
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
Danger4u2
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KX500 is Danger4u2 Returning from light speed pic.


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« Reply #365 on: April 24, 2019, 09:24:04 AM »

Wow, you're the most famous member on here.  What next TV series....movies?
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umberto
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« Reply #366 on: April 24, 2019, 10:35:10 AM »

My bike is famous, Iím just the guy who pushes it around.  grin
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
ssrlewis
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« Reply #367 on: April 24, 2019, 11:20:19 AM »

d**n I went riding with a fancy bike that made it to the big times!


Steve
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sandblaster
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« Reply #368 on: April 24, 2019, 08:21:28 PM »

So, what's next?
You know you can't just stop right there....
And each build has to be better than the last... Ugh...  undecided
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.
umberto
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« Reply #369 on: April 25, 2019, 01:22:46 PM »

I am hoping I can take a break after this one.  Chasing this level of build is exhausting, stressful, and kind of expensive.  I'm happy to have the two bikes I have, but I think the next build will be a simpler one.   grin
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
Danger4u2
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KX500 is Danger4u2 Returning from light speed pic.


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« Reply #370 on: April 25, 2019, 03:28:16 PM »

I can remember way back, when you were into Honda's.  That first build was a tough one....

The best part about your new builds, you know which side goes down.....
 grin


* umberto's first build.png (114.95 KB, 267x189 - viewed 142 times.)
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KX 500 Rider
umberto
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First Ride 02-02-19


« Reply #371 on: April 25, 2019, 03:43:50 PM »

My first attempt at a Kawasaki wasn't much better... grin


* Harpswell-accident.jpg (105.61 KB, 980x653 - viewed 63 times.)
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
Gitta
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« Reply #372 on: May 26, 2019, 04:52:54 PM »

Wow what a sick build! Kudos to you! The question is now that its so pretty can you still ride it? grin
Either way its a work of art. Nice job

Also this gives me inspiration to one day fit up the old Cr500(Shh, I secretly love Hondas also) into a better frame. I suppose I should learn how to weld first, and I need to graduate college(1 more year)!
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umberto
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« Reply #373 on: May 27, 2019, 09:50:45 AM »

Wow what a sick build! Kudos to you! The question is now that its so pretty can you still ride it? grin
Either way its a work of art. Nice job

Also this gives me inspiration to one day fit up the old Cr500(Shh, I secretly love Hondas also) into a better frame. I suppose I should learn how to weld first, and I need to graduate college(1 more year)!
Thank you Gitta!  I grew up around Hot Rods, and my father is pretty meticulous, so I have a hard time leaving stuff un-customized.   grin  I have yet to get it dirty, as I'm having a little issue with the fuel system I need to fix.  The hard part about taking one all apart is getting it all back together as you had it.  That, and the weather in Oklahoma has been biblically rainy.   

Hang on to that CR 500.  All the big two strokes are getting harder and harder to find in good shape.  The only thing about putting CR 500s in newer frames is that almost all the newer style CR frames are aluminum, which takes a lot more skill to weld and requires a TIG welder.  You might get everything put together like you like it, and then have a professional weld it up for you.  That's what I did with my other bike.  Also, there is no judgement here.  We all like big two strokes, no matter who made them.  Just don't start another "which one is better" war.   grin
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
umberto
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First Ride 02-02-19


« Reply #374 on: July 28, 2019, 10:46:58 AM »

I finally got around to putting gas in Goliath and seeing if it would start after a long winter's (and spring's) nap.  It started, but it was smoking really badly and barely running.  I figured the gas had gone bad, so I drained the tank.  I decided to change the plug, and clean the carb as well.  This proved to be an adventure that I figured I would share with you guys to make sure it doesn't bite anyone else.  When I took off the float bowl to drain it, the floats were sitting in the float bowl unattached.   shocked  I didn't see how they came out, and there was a groove in the float bowl, so I assumed that they rode in that groove, and there were pins in the carb body to keep them from floating away.  I tried this configuration, and needless to say it didn't work.  I then tried to look at videos of the carb, or the parts fiche, but they also didn't really help.  Finally I decided to turn the carb over on my workbench, and it finally hit me.  There are holes in the floats, and they ride up and down on the pins that I though located them in the notches (see pictures below).  Once I got them on the pins, everything was happy again and I was able to fire the bike up without issue.  Live and learn.  grin





Also, I later learned that the billet fuel bowls have more capacity (and are deeper), so they flip those pins from being in the float bowl to the carb body.  This means the floats fall out when you take off the bowl.
« Last Edit: July 28, 2019, 03:30:35 PM by umberto » Logged

Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
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