1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 52Get this manual
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Orifices (1f4-20 Thread Size - )
Orifices
Thread Size)
ID No26 29 32 33 34 35 36 37 38 39 40 42 46
Part No333185 328529 328530 328124 328574 326064