Instruments and indicators
EMU26782
This gauge displays the difference in engine speed (r/min) between the port and starboard engines for reference purposes when synchronizing the two engines’ speeds.
ZMU01752
If twin engines are installed on your boat, the gauge will only display the total fuel economy of both engines.
●Fuel consumption varies greatly with boat design, weight, propeller used, engine trim angle, sea conditions (including wind), and throttle position. Fuel consumption also var- ies slightly with the type of water (salt, fresh, and contaminate levels), air temperature and humidity, cleanliness of the boat bot- tom, engine mounting height, skill of the op- erator, and individual gasoline formulation (winter or summer fuel and amount of addi- tives).
●The Yamaha digital speedometer and fuel management meter calculates speed, miles traveled, and fuel economy by water movement at the stern of the boat. This dis- tance can vary greatly from the actual dis- tance traveled because of water currents, sea swells, and the condition of the water speed sensor (if partially plugged or dam- aged).
●Individual engines may slightly vary in their fuel consumption due to manufacturing variations. These variations can be even greater if the engines are of different year models. In addition, variations in propellers, even of the same basic dimensions of the same design, can also cause a slight varia- tion in fuel consumption.
ZMU01753
1
2
3
4
5
ZMU01754
1.Port engine speed is higher
2.Port engine speed is slightly higher
3.Engine speed is synchronized evenly be- tween port and starboard engines
4.Starboard engine speed is slightly higher
5.Starboard engine speed is higher
If the two engines’ speeds are not synchronized while cruising, adjusting trim angle or throttle can synchronize them.
If large differences in trim angle or throttle are needed to synchronize the engines, consult your Yamaha dealer for adjustments to the throttle cables.
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