Question about 1981 Suzuki GS 750 L

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Suzuki GS 1000G has an idle problem. The stood for some time and I concluded that the idle circuit had become gunned up. I took the carbs off and removed the float chambers. There was no obvious dirt or scale, but removed and cleaned the main and primary jets, I also removed and cleaned the air jet as also removing the tops and cleaned the slides and needle jets. Again no obvious causes for any problem, but used compressed air to blow through all channels. After reassembly it will only run above 2,500 as if he idle circuit is inoperative. There is very narrow pickup with a small orifice that has it's pickup in a recess in the float chamber. I suspect that this could be clogged, although I attempted to clean it by blowing air through it? What alternatives do I have?

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You could not have done any more. Only thing left is the adjustment of the air intake jet. It has to be so adjusted with the fuel intake jet that the mixture is just right for combustion. If there is more air going then the pickup suffers and the engine tends to stall at idling as is happening now. And if there is more fuel going then the idling become fast and the consumption goes up and you lose money. Either way it is bad. Hence it has to be just right. And that can be done by a competent mechanic. Please get it done.

Posted on Aug 29, 2010


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Jun 28, 2009 | 1981 Suzuki GS 750 L

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