When comparing you Port & Starboard engines in a twin engine boat——-Always “think” these engines could have up to 10% tolerance in overall operation before you start worrying or thinking something is wrong when asking WHY one engine seems to use more fuel than the other, OR why one engine makes 50+ more RPM than the other………….This is just one more reason why it is so important to be sure your engines are both propped to make not less than 100 RPM over minimum rated RPM on a mechanical engine or reach the governor break point on all “Q engines”, and reach it EASY, under all conditions to ensure maximum performance, the lowest possible fuel consumption, and the best overall engine life.
