First is a question, I am boat stupid but trying to learn, Why when I put the boat in reverse the motor jumping out of the water, idle is down but jumps hard, Is there a lock down for this motor I don't know about?? (1969 Evinrude 55 HP).. Next is the problem, boat starts idle good but when you place it in gear it runs a few seconds and dies out, I drained my fuel tank and alot of water was present, I refilled with good fuel (91 octane)and not alot of difference in the way it runs. I did get it to run for a good while tonight and ran fairly descent but after a while it started missing, misses real bad in turns.