Maintenance & Technical > KX500 Aluminum Frame Conversion (AFC)

fmf 500 af headpipe springs

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yeomans:
Those puppies are tight !!!, but their on there.
Anyone know the stock length of the springs in millimetres?
I've seen several places now that sell in many different lengths.

brooksie:
Well, I headed off down to the local store and had a look at their snowmobile springs. They are huge! Diameter wise...
So that was a no go. I ended up ordering two sets of FMF springs. They come in packs of 5 for $7 a pop. I ordered the 85mm and 90mm springs. Ideally, you need two different length of springs anyway. The one on the underside of the cylinder needs to be longer.
I agree yeoman, the standard KX500 springs are way to short for my liking also. I bought those, but didn't even try to put them on after offering them up to the pipe.
My springs should be in mid week, so I'll let you know how I get on and hopefully be able to pass on part numbers that work.

yeomans:
Much appreciated,
I ordered an oem set a while back, but soon as they showed up in the mail I realized they were going to be a little tight for my liking.

brooksie:
FMF springs

Part No 002-1052   Desc: BVP 83MM PIPE SPRING/5PK

Part No 002-1051   Desc: BVP 90MM PIPE SPRING/5PK

The 83mm springs fit lovely.

yeomans:

--- Quote from: brooksie on April 09, 2013, 01:57:52 PM ---FMF springs

Part No 002-1052   Desc: BVP 83MM PIPE SPRING/5PK

Part No 002-1051   Desc: BVP 90MM PIPE SPRING/5PK

The 83mm springs fit lovely.

--- End quote ---

Thanks so much for the infor, very much appreciated

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