Instruments and indicators39Return to port and consult a Yamaha dealerimmediately.EMU40792Command Link MultifunctionMetersThere are 6 types of Command Link meters:tachometer unit (square and round types),speedometer unit (square type), speed &fuel meter unit (square and round types), andfuel management meter (square type). Theindicator system is slightly different betweenthe round and square types. Check the mod-el and type of your unit carefully. This manu-al describes mainly the alert indicators. Formore details on setting meters or changingindicator systems, see the operation manualfor the meters.EMU41164Command Link MultifunctionTachometerThe tachometer shows the engine speedand has functions of trim meter, adjustingtrolling speed, cooling water/engine temper-ature display, battery voltage display, totalhour/trip hour display, oil pressure display,water detection alert, engine trouble alert,and periodic maintenance notification. If thecooling water pressure sensor is installed,the unit can also show the cooling waterpressure display. However, even if the cool-ing water pressure sensor is not installed,the cooling water pressure display can beshown by connecting an optional sensor tothe unit. For the optional sensor, consult yourYamaha dealer. The tachometer unit is avail-able in round and square types. Check yourtachometer unit type.ZMU072541. Set button2. Mode button1. Tachometer2. Trim meter3. Multifunction display4. Cooling water pressure5. Cooling water/engine temperature6. Water detection-alert indicator7. Battery voltage8. Oil pressure (4-stroke models)21ZMU0541523145678 ZMU05416