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Helm Control Systems
The most common features activated or
monitored by the keypad are:
• Starter lockout, which prevents the engine
from being started in gear.
• Gear lockout, which allows the engine RPM to
be advanced in neutral safely.
• Battery voltage warning indicator that warns
the operator of high or low voltage supplied
to the system (audible alarm).
• An engine synchronization feature that
automatically keeps all engines at the
same RPM while cruising. Refer to Engine
Synchronizing in this section and the control
systems owner’s manual for more information
regarding engine synchronization.
• Trolling feature that allows the operator
to increase the engine speed in 50 RPM
increments while operating at trolling speeds.
• Station selection (a separate button on some
controls) that allows the operator to transfer
control from one station to another with the
push of a button on boats with two helm
stations. Each station must be selected by
the operator before the controls will operate
from that station.
These features and others not mentioned require
specic procedures to activate and operate them
properly. Some of the procedures and features
are unique to the engines and other options
installed on your boat. It is essential that you
read the owner’s manual for the controls and be
completely familiar with their operation before
using your boat.
ALWAYS RETURN THE ENGINE THROTTLE LEVER TO THE
EXTREME LOW SPEED POSITION AND ALLOW THE ENGINES
TO DROP TO IDLE RPM BEFORE SHIFTING. NEVER SHIFT THE
UNIT WHILE ENGINE SPEED IS ABOVE IDLE RPM.
Engine Synchronizer
During most operations of triple and quad engine
powered boats, it is advantageous for all engines to
be operated at the same RPM. This reduces noise
and vibration and can increase engine efciency.
Setting the throttles so that the engines are run-
ning the same RPM (synchronized) can be done by
listening to the engine sounds at low RPM and with
the automatic synchronizer feature built into the
Typical Yamaha Triple Engine Station Transfer Button
Yamaha Helm Master Control Key Pad
& Station Transfer Button
electronic engine controls when the engines are op-
erating above 1000 RPM. Attempting to synchronize
the engines solely by using the tachometer readings
or control lever placement generally will not work.
When the engines are in proper synchronization, the
throttle levers may not necessarily be even.
Please refer to the engine or control owner’s manu-
als for more information on the engine synchronizer
and other features for the electronic controls in-
stalled on your boat.
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