Reply to "Any Ideas?"

4nford"Live wrong and Perspire"

The carb is a 625 Demon. The power valve is a 6.5, way below what my idle vacuum is. I have checked for vacuum leaks and cannot find any. I think that the key is that this problem starts only when the engine is warmed up. When it starts to stumble, I apply throttle and all is OK. The engine also revs up strong if throttle is applied. It just won't hold idle. Is there something in the carb's idle circuit that can cause this when warmed up?

12/23/072:39 PM

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