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Carb kits & Air filter replacement GS450S

  • Thread starter Thread starter Tuff240
  • Start date Start date
T

Tuff240

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After a basic check and fluids change on my new 1980 GS450S I decided it was safe enough to try to fire it up for the first time in probably 25 years. With a little help it fired up and idled a little. Sounded pretty good considering it's hibernation time.

Now I want to rebuild the carbs and need a new air filter. The carbs are a little slow (gummed up most likely) and the foam air filter element turned into dust when I touched it.

Easy one first. Stock replacement foam air filter or does K&N make a drop in type replacement for this model? Is it recommended? Bike is bone stock with 12k miles on it.

Carbs: I read through a couple carb rebuilds here and it looks easy enough. I checked eBay real quick and didn't see any kits available. It's mostly o-rings besides the float bowl gasket. Where do you guys get new o-rings? Dealer, auto parts store or?

Thanks and any more tips are always appreciated.
 
Cycle X orings - I think the actual link is around here and Basscliff's site though. While I haven't tried it, I think Uni makes a foam filter replacement for the GS450.

There ya go, Tom beat me to it.
 
O-rings, bowl gasket and probably a new set of needle and seats. You probably need new rubber intake boots, fuel line and check the fuel petcock as well. Oh new plugs, check the valve clearances...see what you started lol:) It is a 32 year old bike that is going to need a good going over.
 
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