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I noticed when I pulled the lid off the airbox on my 89 Evinrude that it had no gasket. I asked my local boat mechanic about this and he said it didn't need one Is this true or not
You will be fine with no gasket (I'm not entirely sure there is even one there from the factory.) Regardless, this is not a place that there should be any kind of vacuum, so it won't cause you any problems at all.
there is no filter..but as Joe mentioned in some motors it could make a difference because they are made to run with certain amount of air intake restriction. too much air could cause the cylinder to run lean and burn a hole in the piston.
I think that that one does have the gasket.
There is another reason for the gasket. The gasket guarantees that the air can only come into the engine from one area which makes it very hard for "stray" water or other crap to make it into your carburetor
Another reason the gasket is there is to keep the "spit back" you get on a 2 stroke from the carbs leaking out when you tilt up the mtr. There should be a hose on the bottom of the box where the oil is run back through mtr when re-started.
