Types of indicators that can be connected to the motor. The indicators provide a variety of additional information about the operation of the motor and can be useful for various purposes related to the management of the boat. Note that compatibility with a particular indicator only means that the motor has the appropriate sensors — the indicator itself usually needs to be purchased separately.
—
Speedometer. An indicator showing the current speed of the boat. Note that the speedometer data is based on the speed of the water flow relative to the vessel; in other words, it shows speed over the water, not over the shore, and in strong currents, the actual speed of movement can differ markedly from the data from the speedometer. However, for simple navigation tasks, this is quite enough, but for complex ones, there are more advanced methods for determining speed — for example, according to GPS data.
—
Tachometer. An indicator showing engine speed. Allows you to control the mode of operation of the motor and prevent a critical excess of speed (fraught with increased wear and even an accident). The difference between the tachometer and the overspeed sensor (see below) is more detailed information — this indicator works constantly, providing the driver with information about the speed both in abnormal and in normal operation.
—
Hour metre. A syst
...em that counts the total operating time of the outboard motor. Hours data is extremely important for engine maintenance and failure prevention: for example, in many models, the frequency of oil changes, general maintenance and other similar procedures is tied precisely to the number of engine hours. In addition, the total resource of the motor is described precisely by the time of its operation.
— Oil pressure. Engine oil pressure indicator. A decrease in this pressure is a sign that there is little oil left or there is a problem in the lubrication system; the indicator provides early warning of such troubles, preventing situations where the engine is left without lubrication (which not only increases wear, but is also fraught with jamming and an accident).
— Oil temperature. The indicator showing the temperature of the oil in the engine. High oil temperatures are undesirable not only because the oil loses its properties — it is often a sign of serious problems in the engine.
— Oil level. An indicator showing the amount of oil remaining in the engine. Allows you to estimate the amount of lubricant available and, if necessary, take measures to replenish its supply.
— Battery charge. An indicator showing the battery charge level. It is most often found in electric motors (see "Engine type") and plays the same role in such models as the remaining fuel indicator (see below) in gasoline — that is, it informs the user about the energy reserve. However, gasoline units with an electric start system (see above) can also be equipped with a charge indicator — so that the user can monitor the condition of the battery and take timely measures to recharge it (otherwise, at the most inopportune moment, you can be left without the ability to start the engine).
— Remaining fuel. An indicator showing the amount of fuel remaining in the tank. This feature allows you to control the fuel supply and reduces the likelihood of being left with an empty tank at the most inopportune moment. However the information from such indicators is rather approximate — nevertheless, it is quite sufficient for successful application in fact.
— Fuel consumption. An indicator that displays fuel consumption in the current mode of engine operation. Allows you to evaluate the economy of the selected mode and determine how long the available fuel will last; especially effective in combination with the remaining fuel indicator described above.
— Engine overheating. An indicator signaling a critical increase in engine temperature. A similar phenomenon can be both a consequence of a malfunction in the motor itself, and the result of external influences (for example, a long stay in direct sunlight); however, anyway, overheating is fraught with various troubles (from jamming to fires and even explosions), and a timely warning about it will definitely not be superfluous.
— Engine overspeed. An indicator that provides warning of a critical increase in engine speed. Unlike the tachometer described above, it works only in emergency situations and does not provide data on a specific number of revolutions.
— Trim positions. An indicator that notifies the user of the current position of the trim (leg) of the engine. It is convenient because to clarify the position of the leg, you do not have to turn around and look at the engine every time.
— Throttle positions. An indicator that informs about the current throttle position — and, accordingly, the power that the motor should give out. It allows not only to control the engine operation mode, but also, in combination with other sensors, to diagnose various problems: for example, the lack of throttle response to the movement of the engine control knob indicates a malfunction in the remote control (see "Control system").
— "Water in fuel". An indicator that warns of the presence of water in the fuel entering the engine. The ingress of water into the fuel leads to a decrease in engine power and interruptions in its operation (since the water does not burn, the combustion energy in the cylinders drops), and a large amount of foreign liquid leads to the so-called water hammer, severely damaging the engine. The indicator warns of such phenomena, and in most cases it is able to work long before the described effects become visible to the “naked eye”. This allows you to take action in advance, before the consequences become dire.
