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gs450 carbs 85 - 88

  • Thread starter Thread starter Red
  • Start date Start date
R

Red

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Does anyone know why some gs450 carbs 1985 onwards do not have air mixture screws?
 

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Hi babes, Im not familiar with that model but i know sometimes on U.S. models they were hidden under a small metal cap that can be drilled out to access the screw.
Hope that helps some.
Good luck.
Xxx
 
gs450 carbs 85-88

gs450 carbs 85-88

Thanks, there is what looks like blank cap on the top, must have done that so you can't tamper with it.
 
Correct. In the U.S. they were pre-set and covered to conform with emissions and disallow adjustment. Drill a small hole in the center of the cap, screw a small screw into it just a bit, and then pull the cap out. Toss it; you will never need it again. The air/fuel mixture screw will now be accessible.
 
The US 80 - 82 carbs had them as well, us lucky Aussies had direct access with no covers, and we also got adjustable needles and larger mains... :cool:
 
gs450 carbs 85-88

gs450 carbs 85-88

Job done!
The pilot screw covers came out fairly easy, grateful for your advice.
 
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