I have Yamaha 200TXRP motors, starboard # 259669, port #703727. The port motor starts up on the first crank every time but the port motor haphazardly gives a hard start problem. When cold it usually fires up but then stalls and is difficult to restart. It takes several cranking attempts. After running for a while if it is off for a half hour it will give me the same problem. Occasionally it will start on the first crank but not always. I go through the same starting procedure with both engines so I haven't a clue as to why the port motor is so temperamental. Anyone got any ideas? Maybe a weak coil? I put new plugs in which did not help.