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Instruments ~
While under way, instruments should be checked frequently for possible indications of trouble.
Tachometer (if fitted)
A tachometer is an electrical instrument that indicates engine Revolutions Per Minute (RPM). The tachometer is useful for
monitoring engine speed to avoid exceeding the maximum RPM rating. In addition, it can be used to detect performance
changes by comparing speedometer readings at various RPMs.
WARNING
Excessive trim out also may reduce the stability of some high speed hulls. To correct instability at high speed, reduce the
power GRADUALLY and trim the motor slightly before resuming high speed operation. Rapid reduction in power will
cause a sudden change of steering torque and may cause additional momentary instability.
WARNING
Excessive speed at minimum trim in may cause undesirable and/or unsafe steering conditions. Each boat should be
tested for handling characteristics after any adjustment is made to the tilt angle (tilt bolt relocation).
Temperature Gauge (if fitted)
The temperature gauge indicates engine coolant temperature by monitoring a signal from a sending unit installed in the
engine water jacket. When the gauge reads in the danger area, shut off the engine and diagnose the problem.
A common cause of overheating is picking up a foreign object in the water intake. Usually, raising and lowering the
outboard will free it. Backing up in reverse gear, then pulling ahead in forward gear for 2 - 3 (two to three) metres is helpful
too.
Oil Pressure Gauge (if fitted)
The oil pressure gauge indicates engine lubricating oil pressure. Low oil pressure readings are generally caused by low oil
quantity. In any case, immediately shut down the engine and diagnose the problem.
Fuel Gauge (if fitted)
The fuel gauge indicates fuel level. Since boats are exposed to rough water conditions and varying degrees of trim, fuel
gauge readings are often inaccurate. It is always good to keep track of your running time as a double check against an
inaccurate gauge.
Compass (if fitted)
Many factors affect the operation of your compass, such as local magnetic variation and deviation (induced needle
deflection caused by metal components and the operation of electrical equipment aboard your boat). Each compass must
be “swung’ (compensated) to adjust for individual boat characteristics, and for the particular compass installation. It is
vitally important, therefore, that you have your compass professionally swung before using it for serious marine
navigation. Contact your dealer for more details.
Electrical System ~
Battery (if fitted)
The key to a good marine electrical system is the battery. On some models the condition of the battery can be read on the
voltmetre when the ignition switch is in the ON position.
With the engine not running, voltmetre readings in the 11.5 to 12.5 volt range are considered normal. Readings in the 10
to 11.5 volt range indicate a marginal charge condition. Readings below 10 volts indicate a seriously discharged condition.
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