i have a 1981 50hp evinrude that is about to drive me insane!! the problem that i think im having is the bottom cylinder not getting any fuel and therefore only running on one. the motor will crank up, idle, and rev up fine in nuetral but when you put it into gear and hammer down on the throttle it will run fine on both for about 3-4 seconds and then go back down to running on one and eventually die out but will crank right back up again and we repeat the process. i think its not getting fuel to the bottom cylinder because right after i ran it i pulled the plugs and the bottom one was dry as a bone. it has good compression 120psi on both cylinders. getting good spark to both it's got a new power pack new coils plugs and plug wires as well as a new fuel pump. fuel lines are good and not clogged i cleaned the carbs but a marine mechanic is currently rebuilding them for me. hopefully that solves the problem but if it doesnt does anyone have ideas?? someone help before i end up in the crazy house!!