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The choke is hanging up on my 1967 L-79. I found an incorrect screw retaining the remote choke spring. The correct part number is 159853. I'd like to run to the local hardware store and get this resolved today and am asking for the size and pitch of the screw to find a replacement.
This picture was borrowed from another thread on the forum and shows the choke spring attaching screw.
A little more length will help..........as the top few threads are usually well worn. I think 3/8 or 1/2 inch is the right answer. I believe that I did the extra length (3/8 inch) last year when I replaced mine. Buy one of each length and see.
No certain of the diameter..........if not #8, it should be a #10. Also not sure of thread count........as #10 has both coarse and fine.
Screws are cheap..........buy a few of each and try them.
Yes, the first few threads in the intake were worn. The longer screw was able to bite with plenty left and it tightened down nicely. Now the choke works as designed. Thank you