Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)
KXF /KX250
AJ:
reddy
- i have built them (KX250AF)
(i need to get some finished photos up)
The key things youll have to address are:
countershaft alignment..both vertvcal and horizontal.
moving the yoke "Y" area of the frame up to clear a 2 stroke exhaust.
engine mounts
headstay and a headstay mount of some design.
the pipe and exhaust ,,but those are fairly easy to modify from a stock KX250 stuff.
radiator clearence of the Y area ,and the several hose barbs relocation
and a few incidentals like a cdi and coil bracket etc.
**********
none of it is too hard to do, if you are a faricator,
and have a welder , mill or lathe and stuff you need
working out the rads..
is likely the largest challenge
Dutch-K5 Fan:
--- Quote from: AJ on December 22, 2008, 07:44:11 AM ---reddy
- i have built them (KX250AF)
(i need to get some finished photos up)
The key things youll have to address are:
countershaft alignment..both vertvcal and horizontal.
moving the yoke "Y" area of the frame up to clear a 2 stroke exhaust.
engine mounts
headstay and a headstay mount of some design.
the pipe and exhaust ,,but those are fairly easy to modify from a stock KX250 stuff.
radiator clearence of the Y area ,and the several hose barbs relocation
and a few incidentals like a cdi and coil bracket etc.
**********
none of it is too hard to do, if you are a faricator,
and have a welder , mill or lathe and stuff you need
working out the rads..
is likely the largest challenge
--- End quote ---
With "radiator clearence of the Y area" you mean placing them more to the out side???
Gone look tomorrow again with mine, looks like it's pritty tight around the Y section
for radiator and exhaust to fit both.
Dutchie
Reddy:
Thanks for the advice, unfortunately i am not a fabricator! But will have a go at most things.
My plan is get the engine mounted through the swinging arm, and then get someone to sort the frame out.
THen the rest will be up to me! I'm looking forward to the challenge though.
Any more info and pics would be great.
Dutch-K5 Fan:
--- Quote from: Reddy on December 22, 2008, 10:15:05 AM ---Thanks for the advice, unfortunately i am not a fabricator! But will have a go at most things.
My plan is get the engine mounted through the swinging arm, and then get someone to sort the frame out.
THen the rest will be up to me! I'm looking forward to the challenge though.
--- End quote ---
It's the same for me Reddy, only I will do the frame a much my self for what I can.
It's funny that we are doing the same at the same time, only 250 vs 500.
Dutch
Reddy:
Yeah I'm trying to do as much of it myself as well.
Whats even funnier was my plan this winter was to put my RM139 engine into a RMZ frame! never mind, means I can keep that now :)
Still waiting on my engine will update with pics when I get it mounted.
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