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Solex 44 PA1 Idle Mixture Screw
Solex 44 PA1 Idle Mixture Screw

Solex 44 PA1 Idle Mixture Screw

Your Price: $4.95
10-32 x .97"
Part Number: 16-38F
Availability: In Stock

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New Solex 44PA1 marine carburetor idle mixture screw. Includes a new spring. There is one 44PA1 that uses a smaller screw than this screw, but are not available. Fortunately they are rare.
.97" overall length

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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