"This may sound like an odd question, but I took off, what I thought was the air filter cover and revealled the carberators ports. But no air filter. Since this is my first boat, is there supposed to be an air filter. I have had, the motor serviced by a mechanic recently, and I'm thinking that he may have forgotten to replace the air filter (i.e if it had one in the first place)
the outboard is a mercury black max 175hp 1977 model"