Have been having idling problems on my 2000 90 hp ELPTO 2 stroke. Coughing, spitting. dieing, just continually rough. Above 2000rpm hpwever, it runs like a champ.
When I adjust the 3 idle mixtures, the top carb screw seems to have no effect, even when fully screwed in. The carb is mounted tightly, and the cover plate above the mixture screw is tightly secured with a good gasket. It would seem logical that this is the cause of the rough idle, but before I go tearing into it, I would appreciate any thoughts as to why the idle screw is ineffective?
When I adjust the 3 idle mixtures, the top carb screw seems to have no effect, even when fully screwed in. The carb is mounted tightly, and the cover plate above the mixture screw is tightly secured with a good gasket. It would seem logical that this is the cause of the rough idle, but before I go tearing into it, I would appreciate any thoughts as to why the idle screw is ineffective?
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