I'm having a problem with my 25 hp Mercury freezing up when temperatures reach down in the 20s. I'm a duck hunter and when we arrive at the boat launch with these cold temps I cannot shift into either forward or reverse. I've got a water problem somewhere in the lower unit, I think. The gear...
I've been given a 25 hp mercury motor, serial # 0D172586, I think 1992 or 1993 model. It starts fine but is sluggish running. I've cleaned the carb but don't know the recommended factory needle setting. Can someone provide the recommended setting?
