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Volvo Forward Drive Propulsion
Forward Drive Propulsion’s advanced technology
uses two forward-facing, counter-rotating propel-
lers to pull the vessel through the water.
On all sterndrive boats, the Forward Drive can be
raised or lowered to further customize the wake
(see “Power Trim Assist” below).
Ballast
The Surf System uses three ballast bags to create
a larger wake. Bags are filled with water to add
weight to the boat which lowers the boat’s ride and
displaces more water.
Two bags are located
in the engine compart-
ment: one starboard
and one port. The third
bag is located in the
helm ski locker on the
center line. Ballast lev-
el is controlled from the helm plotter and ballast
can be filled, fully or partially, to create the desired
wake for each rider.
To fill or drain ballast make sure the seacocks
are open. Seacocks are located in the engine
compartment on the fore side of the engine(s).
The Surf System uses forward drive propulsion, ballast bags, wave shaping trim tabs, and integrated rider The Surf System uses forward drive propulsion, ballast bags, wave shaping trim tabs, and integrated rider
profiles for safe and customizable surf control at your fingertips. Review “Safety On Board” pg. 18 in your profiles for safe and customizable surf control at your fingertips. Review “Safety On Board” pg. 18 in your
General Vessel manual before engaging in water sports and always use a spotter to track swimmers and General Vessel manual before engaging in water sports and always use a spotter to track swimmers and
surfers. surfers.
Surf Engine/System
BOW
EXHAUST
Typical
Ballast Bag
NOTICE
PREVENT WATER PUMP/IMPELLER
DAMAGE!
DO NOT RUN THE PUMP SYSTEM
WITHOUT WATER OR WITH SEA COCK
HANDLE CLOSED
Components
Dual propellers are placed in front of the gear case
toward the bow of the boat for performance and
safety. The reorganized prop shaft allows a wake
surfer to ride right behind the boat without risking
injury from the propeller’s blades.
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