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gs450 shim under bucket

  • Thread starter Thread starter mark herbert
  • Start date Start date
M

mark herbert

Guest
Hi guys, hope someone can help, I'm going to race a gs450 bored to 500 etc, & have been advised that to fit race cams that its best to convert to shim under bucket valve set up! has anyone done it & if so what buckets/shims did you use?!
cheers Mark.
ps does anyone know if the gs500 yokes fit in the 450 frame?
 
The Kawasaki Z650 buckets and retainers with 12mm shims will fit. There are several aftermarket versions of these, shop around.

Personally, I reckoned they were too heavy. For a 1000 I've just finished I found titanium Nissan SR20 retainers locally which I remachined for the Suzuki collets. They use a 10mm shim. I then used Suzuki buckets (shorter than the Z650) with the tops machined flat.
 
Last edited:
Correct Jay - too early in the AM....You carry kits for the 8V motors which will fit the 450 too I believe...

The only reason I used the Nissan retainers was distance from suppliers and I got a very good price here in NZ. There's Ti retainers available in the US of course which require no alteration.
 
Hi Jay, it would appear that you do parts for 1000's, do you have a cam under bucket kit & would 1/2 of it fit the gs450? (33.5mm buckets) if so what sort of price are we talking?
cheers Mark
 
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