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Dead Parrot · 06-26-2018, 07:02 AM

Vacuum advance on ported or manifold?
What is idle timing with vacuum advance connected?
If on ported, for testing move to manifold to get more idle timing. Should help in getting the carb off the main ports and working only on the idle circuit.

The idle mix screws are just that, IDLE mix screws. They have minimal impact on driving mixture, that is the job of the jets, rods and springs. If it seems rich at idle, turn them in until idle improves or they lightly bottom. If the idle mix screws bottom before the idle improves, possible the float levels are set too high. Not uncommon on an out of box Eddy.

Wouldn't hurt to pull the power piston covers and check the pistons and metering rods for gum. Easy to do with the carb still on the motor. While they are out, clean with carb cleaner, just to be sure. Spray some down the holes as well.

06-26-2018, 07:02 AM	#6
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,509	Re: 350 running rich Vacuum advance on ported or manifold? What is idle timing with vacuum advance connected? If on ported, for testing move to manifold to get more idle timing. Should help in getting the carb off the main ports and working only on the idle circuit. The idle mix screws are just that, IDLE mix screws. They have minimal impact on driving mixture, that is the job of the jets, rods and springs. If it seems rich at idle, turn them in until idle improves or they lightly bottom. If the idle mix screws bottom before the idle improves, possible the float levels are set too high. Not uncommon on an out of box Eddy. Wouldn't hurt to pull the power piston covers and check the pistons and metering rods for gum. Easy to do with the carb still on the motor. While they are out, clean with carb cleaner, just to be sure. Spray some down the holes as well.