I have a 1992 20 hp Johnson its a j20crend. First question. Is it ok to put some kind of screen over the front of the carburetor? Im afraid that something might get sucked into it. Next question. If the motor is tilted up as if you trimmed it up a little or after its been on the trailer with the motor up on the transom saver there is some fuel that leaks (comes out of) the small hole at the front bottom of the carb,it run down into the bottom motor housing and starts to build up or run out of a drain hole that is in the housing is this normal? The Carb was gone threw and a kit put in at the end of last summer. Appreciate any help.