1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 71Get this manual
Carburetor Orifice Plug Reference Chart It is occasionally necessary to replace carburetor orifices to improve running characteristicsCheck current parts catalogs for orifice part numbers
INotel Check current parts catalogs and service bulletins before making any orifice changes The following charts list available orifices, orifice size, and part numbersThe identification number is stamped on most orifices
Orifices (8-32 Thread Size) ID No
14 20 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 40 41 42
333342 331952 324005 326188 328549 323003 324652 317474 322936 322776 317473 318823 320016 320015 324025 318832 323703 324698 323149 327745 328535 325829
0.000 0.014 0.020 0.023 0.024 0.025 0.026 0.027 0.028 0.029 0.030 0.031 0.032 0.033 0.034 .035 .036 0.037 0.038 0.040 0.041 0.042
43 44 45 46 47 48 50 53 55 57 58 59 60 61 62 64 66 67 68 70 73