Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)

KXF 250 2007 for KX500AF

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Reddy:

--- Quote from: Dutch-K5 Fan on December 08, 2008, 06:49:03 AM ---Today I've take the K5 engine out of its frame
and took a quick look how it would fit.
It looks like "only" the Y section and some engine mounts are in the wrong place.
First I'll take the cilinder of and will drill the swingarm bolt hole. Thinking to take clutch
cover and clutch basket/hub off for smooth survice to rest on.
Will post some pics next time( if the battary's aren't empty) :-)


Dutchie

--- End quote ---
How much did you strip the engine down before you drilled the swinging arm?
I'm gonna be drilling mine this week.  Did you do each side seperate or just run a pillar drill through them both?

Dutch-K5 Fan:
I've taken the clutchcover of, than the clutch complete, kickstarter axel and some
position pins out. Layed it down on the clutch side so you have a flat base.
First used a batery drill witch a VERZINKBOOR(dutch word), see picture.
Thought it would guide the drill a bit better because it hase 3 cutting surfaces.
But with a good 17mm drill it would go just fine.
And used a pillar drill with 17mm drill and did it from one side with some help.
One man holding the engine and one man drilling.

The idea of doing it is a lot more scary than it realy is.


Dutchie

Dutch-K5 Fan:

--- Quote from: jfabmotorsports.com on December 21, 2008, 06:58:32 AM ---The springs are the same basic part number for both KX500 and KX250f. The stock 250 has a 5.1 and most 500's that year are about a 5.6 rate. How much do you weigh?


JFAB

--- End quote ---
I'm a 80kg dutch bloke :-D

Whant a heavier spring for the extra power of the K5. Have been kicked of
the steel beast once or twice and landed a couple of yards further up :mrgreen:
So the rear and front suspension of course have good adjusted.

Any idea's Jfab??


dutch

jfabmotorsports.com:
Racetech helped me set up my suspension. Mine is set up for motocross and uses the recommended springs off the Racetech web site. The valving is a bit more custom. It handles just like my KX450f but with way more gittyup.....WAY MORE.
  According to the charts your stock springs are just about right unless your are going to supercross it.

http://www.racetech.com/evalving/SpringRateCalculation/dirtspring.asp?brand=Kawasaki&yr=2007&ml=KX250F&formuse=form1&SpringType=Fork

Dutch-K5 Fan:

--- Quote from: jfabmotorsports.com on December 22, 2008, 01:35:24 AM ---Racetech helped me set up my suspension. Mine is set up for motocross and uses the recommended springs off the Racetech web site. The valving is a bit more custom. It handles just like my KX450f but with way more gittyup.....WAY MORE.
  According to the charts your stock springs are just about right unless your are going to supercross it.

http://www.racetech.com/evalving/SpringRateCalculation/dirtspring.asp?brand=Kawasaki&yr=2007&ml=KX250F&formuse=form1&SpringType=Fork

--- End quote ---

Your AF is based on a 450, mine on a 250. And 450's have already heavier springs because
the engine is heavier and has more power. Thats wy I'm thinking to need heavier springs.
But we will see how it will work.


Dutchie

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