F250 SPECIFICATIONS
RELIABILITY AND DURABILITY
F70
Four Stroke
PROTECTION FROM THE ELEMENTS
LARGE WATER SEPARATOR
QUIET, YET STRONG
DRYER OPERATION
The new F70 features a new outer cowling design with
an intake air drain system, to easily and effi ciently drain
away any water that enters the cowling during normal
engine operation. Incoming air is routed through a
labyrinth of passages that help trap and drain water before
it enters the engine’s intake, for maximum reliability.
Yamaha’s F70 four stroke outboard utilizes a Long Span
Mounting System, which uses large specially-constructed
rubber engine mounts placed as far apart vertically and
horizontally as practically possible. Smooth and quiet
operation, yet with strength and durability, is the result.
All new F70 outboards feature a large, on-engine water
separating fuel fi lter with a water sensor. Used in conjunc-
tion with Yamaha’s optional boat-mounted 10-Micron
Water Separating Fuel Filter, it helps separate water and
contaminants from the fuel before they can reach the
outboard’s other fi lters and fuel injectors.
Yamaha’s large anti-splash plate, standard on F70 models,
helps keep water from splashing up between the leading
edge of the outboard and the boat, resulting in a much
dryer ride. Located on the front of the lower mid-section
just above the lower unit, it excels in applications where
the outboard is normally run deep in the water, such as
pontoon boats.
Revised 12/18/09
