Home › Forum › Ask A Member › Neptune alternate firing twin 5A39 › Re: Neptune alternate firing twin 5A39
December 2, 2016 at 5:32 pm
#48405
Tubs, thanks for posting the pix, video. She sure seems to be running nice on your boat. As for starting issues, I’m going back to the wasted spark ignition system. have you ever encountered another 2-cycle with that arrangement? It seems strange that one would introduce a spark at the point of the cycle when the fuel charge is being introduced into the cylinder. I wish that I had had my camera to get a picture of the 5A39. It is configured similiar to your motor (but ?) the cylinders are a one piece iron casting.
Joe B