Author Topic: 1992 KX 500 to KX 250 F 2011 Conversion  (Read 40566 times)

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Offline German-need-help

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1992 KX 500 to KX 250 F 2011 Conversion
« on: October 09, 2013, 08:43:21 AM »
here we go...











« Last Edit: October 09, 2013, 09:04:11 AM by German-need-help »

Offline sandblaster

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #1 on: October 09, 2013, 09:08:50 AM »
Look great!
Keep those pics coming...
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline German-need-help

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #2 on: October 09, 2013, 09:25:24 AM »
thanks  :wink:









« Last Edit: October 09, 2013, 09:33:53 AM by German-need-help »

Offline sandblaster

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #3 on: October 09, 2013, 09:32:18 AM »
I like your carb modification, nice job...
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline German-need-help

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #4 on: October 09, 2013, 09:47:53 AM »
more frame work.... we will go to the welder at the next days...
the edges of the square tube will be rounded after welding (like OEM Kawasaki)









Offline cmotodad

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #5 on: October 09, 2013, 11:12:44 AM »
Are the insides of the sq. tube 90 degree corners? If so, I did that to a CR500 and the rails cracked pretty quickly from it being too thin on the corners. I went to radiused sq .tube and have had good luck.

Offline sandblaster

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #6 on: October 09, 2013, 12:07:42 PM »
I like your lower engine mounts...



The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline German-need-help

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #7 on: October 09, 2013, 10:29:55 PM »
Are the insides of the sq. tube 90 degree corners? If so, I did that to a CR500 and the rails cracked pretty quickly from it being too thin on the corners. I went to radiused sq .tube and have had good luck.

Yes there are also 90° corners inside.
The OEM Kawasaki Tubes are 2,5mm thick and we have used 3mm thick tubes.
There will be enough material for a small radius ;-)

Offline German-need-help

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #8 on: October 09, 2013, 10:56:42 PM »


« Last Edit: October 09, 2013, 10:59:44 PM by German-need-help »

Offline German-need-help

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #9 on: October 10, 2013, 07:13:46 AM »
Hey Guys,

which radiators did you use for your build?

We will use the KX 500 radiators...
right side is fine! left side is very very close!
It would be nice if the left radiator will be about 1 cm shorter...

Offline motopunk

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #10 on: October 10, 2013, 07:52:54 AM »
I like your lower engine mounts...






the man of steel is fallen in love to the al-frame...  :-D
big 2 stroke bikes are weapons for real men, who donīt fear death or devil. ;O)
ī83 kx250, ī87 kx250 (with 360 big bore), 87 kx500, ī93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline motopunk

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #11 on: October 10, 2013, 08:02:40 AM »
Hey Guys,

which radiators did you use for your build?

We will use the KX 500 radiators...
right side is fine! left side is very very close!
It would be nice if the left radiator will be about 1 cm shorter...

i used also the kx500 radiators, because they fit perfekt to the 93 kx250 -steelframe, that i used.
why dont you try to lift up the left radmounts 1cm on the frame. would be much easier as cutting and welding on the radiators. you must only look for enough clearance, that the frontfork canīt hit the radiators by turning full to left and right .

where are you in germany?. i live in the northeast in mecklenburg/vorpommern...
big 2 stroke bikes are weapons for real men, who donīt fear death or devil. ;O)
ī83 kx250, ī87 kx250 (with 360 big bore), 87 kx500, ī93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline sandblaster

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #12 on: October 10, 2013, 03:28:54 PM »
the man of steel is fallen in love to the al-frame...  :-D

His are so nice and clean and mine are so ugly  :oops:
Oh well.... I'll copy it on my next build.... Once I finish my first build...  :-)
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motopunk

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #13 on: October 10, 2013, 04:09:07 PM »
the man of steel is fallen in love to the al-frame...  :-D

His are so nice and clean and mine are so ugly  :oops:
Oh well.... I'll copy it on my next build.... Once I finish my first build...  :-)

 :-D  so less time and so much projects...  but you have always the chance to do it better with another good used frame that came in your shop...

 i for my own still waiting that a riding buddy will blow the engine of his 2008 kxf250, because he takes no much care to the bike and it makes abnormal noises, but he still ride it.. and so i hope i can get it cheap with blown engine and maybe i take my kx360 engine for the af-build. the time will show it, what happens in the future  :-)
big 2 stroke bikes are weapons for real men, who donīt fear death or devil. ;O)
ī83 kx250, ī87 kx250 (with 360 big bore), 87 kx500, ī93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline sandblaster

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Re: 1992 KX 500 to KX 250 F 2011 Conversion
« Reply #14 on: October 10, 2013, 04:25:49 PM »
and so i hope i can get it cheap with blown engine and maybe i take my kx360 engine for the af-build. the time will show it, what happens in the future  :-)

Oh yeah, that would make a cool bike....
I hate to wish your buddy ill will............ But..... KX360AF .... Nice  8-)
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.