Home › Forum › Ask A Member › 1959 Johnson 35 hp Super Quiet Carburetor Main Mixture Screw Threads › Re: 1959 Johnson 35 hp Super Quiet Carburetor Main Mixture Screw Threads

#75724
Mumbles
Participant

    Here’s an ’59 RD-21 carb. Not sure what the thread pitch is but I can find out.


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