Volvo Penta 21182210, Operator'S Manual

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Twin Unit Maneuvering
When leaving or approaching the dock, or for any close
maneuvering at slow speed, place the port engine con-
trol lever
3 in neutral N (on standby) and use the star-
board engine. The use of one control is very effective
and more convenient. In the event that the starboard
engine (which is being used for maneuvering) stops,
you can immediately go to the port engine (which has
been on standby).
NOTICE! Both engines must be running during close
maneuvering or at slow speeds. If only one engine is
running, water may be forced back through the under-
water exhaust outlet and cause serious engine dam-
age. Do not attempt to plane boat while operating on a
single engine; operating with a single engine at full
throttle could cause engine or transmission damage.
Engine Synchronization Function
The engine synchronization function makes the
engines in a twin installation operate at the same
engine speed (RPM). It improves fuel economy and
operational comfort.
The function is automatically activated if the following
conditions are met:
● Both the control levers must be in approximately
the same position.
● The engine speed must exceed 800 RPM.
The function is disengaged as soon as the conditions
are no longer met or when operating at wide open
throttle.
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Operation
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