coil, spark plug wires, or plugs

[Chknlyps2]

Originally Posted by old cool

All that being said, I still think my remanufactured Rochester mono has a problem. I have wet gasket at top of float bowl and carboned plugs. I am trying to eliminate the simple first so I'm going to go back to your comments on accelerator pump and vacuum leak at accelerator linkage. Could you please share how to test for vacuum leak at linkage without driving. I sprayed choke cleaner at back of carb yesterday and the engine idle did not change.

Floats could be set to high and gas could be sloshing into the overflow of the float bowl causing sooty plugs. Have you checked the screw for tightness where the gasket is wet?

I have never had luck using carb/choke cleaner to find a vacuum leak, I don't think it is flammable enough. I have had best results spraying starting fluid (ether) at suspected areas, throttle shaft at sides of carb, base gasket, vacuum connections etc. Spray a spot and wait 5 or 10 seconds before spraying the next spot.