Instruction manual

PROFICIENCY IN SURVIVAL CRAFT AND RESCUE BOATS OTHER THAN
FAST RESCUE BOATS
9 10
Gear-box oil should be changed every 100 hours of operation or six
monthly, whatever comes first.
Drain the gear-box into a container by opening the oil-drain plug (2) then
the oil-level plug (1). With the outboard motor in the upright position, inject the
recommended gear-box oil into the oil-drain plug hole (2) until it starts to flow out
of the oil-level plug hole (1). Insert and tighten both the drain plugs.
Fig. 9.12 Changing the gear box oil
c) External lubrication
Every three months, a recommended(marine) grease should be
injected through the specified points (grease nipples) on the outboard motor. This
procedure will ensure all moving parts operate smoothly.
Fig. 9.13 Yamaha grease points
d) Cooling system