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Motorcraft 2100/2150 Idle Mixture Screw 16D127
Motorcraft 2100/2150 Idle Mixture Screw 16-127

Motorcraft 2100/2150 Idle Mixture Screw 16D127

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Your Price: $4.95
Motorcraft 2 Barrel 10-32 X 1.246
Part Number: 16D127
Availability: In Stock

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Motorcraft 2 barrel idle mixture screw. Includes a new spring. Please be sure to compare the measurements as there are several different screws for the 2100 and 2150 type of carburetor. Price is for one screw + spring and you will need two screws.

Primarily for 1972 vehicles.

  • Thread = 10-32
  • Overall length = 1.246"
  • Shaft = 1.074"
Adjusting the Idle Mixture Screws

The idle mixture screws only affects idle. They simply control the amount of fuel and air mixture that is delivered at idle.

First run the screws in all the way until they seat, lightly. Too hard and you will damage the screw. Now back the screw out until the specified rpm is achieved. Turning the idle mixture screws clockwise (in) leans the idle mixture. Turning the idle mixture screws counter clockwise (out) richens the mixture.

Turn the mixture screws, alternating between the two in 1/4 turn at a time until the engine rpm starts to drop, then turn them back out 1/4 of a turn.

When adjusting your idle mixture screws doesn't seem to change the engine rpm much is an indication that there is something wrong and could be an indication of a needed rebuild.

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