View Full Version : won't idle below 2k

05-26-2006, 05:50 PM
i'm getting everything tuned up and ready to go and after a carburator rebuild on a 4160 Holley, my 84 S&S will not idle below 2k. I've tried working my way down but it just sputters and dies. what do I do? :confused: :(

05-26-2006, 06:36 PM
Sounds like you may have a vacuum leak or maybe the gasket is leaking. Spray some carb cleaner around the outside of the carb and intake. When or if it changes RPM you have found your leak.

05-26-2006, 07:28 PM
Drizzle some gas into the carb as it sputters. If it runs better, you need to enrich it. If it sputters and dies, maybe it's too rich already. Verify your timing, make sure the spark is good and the fuel is clean. You could have a bad float, fuel pump, accelerator pump diaphragm, needle valve, etc.

05-27-2006, 04:26 PM
problem = warped spacer plate. add that to the list of things that could go wrong.