What do these things do?

[bobjoe1]

1989 Evinrude 40 hp. On both side of the lower gear case are 2 plastic screens held together by two screws. What are these screens and what is their purpose

 

[rickryder]

Re: What do these things do?

I would post a picture to get a faster response. Sounds like your describing the water inlet screens....one on each side near the prop?

 

[boobie]

Re: What do these things do?

To keep weeds and other junk out of your water pump. Those are your water pump pick up screens.