Honora Primum Vel Nullum Omnin Honorem
Number 2 is the rubber/plastic grommet/plug you remove to access the bolt as Bryan mentioned above.
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Got the lower cowling off and pulled the strainer which was clear (see pic). Thx for all the
2008 BassCat Puma with a Mercury 250 Pro XS / 1996 Champion 186 with a Mercury 175 EFI