View Full Version : twin 140 4strokes power limited

06-30-2010, 07:57 AM
I have twin 140s that have identical problems. They start fine, idle fine but have limited power. With both motors at full throtle they only can manage 3800rpms. They each have there own fuel supply and water sep. They run steady at 3800, no surging. I have last seasons fuel in the boat. Its looks good i do not think this is a octane issue am i wrong? Any suggestions?

06-30-2010, 08:00 AM
Sorry I forgot to mention the motors are 2003s