Lower unit
2-26
Changing the gear oil using the hoses on the side of the engine
The gear oil can be changed using the hoses that are routed from the lower unit to the port side of the
engine without removing the boat from the water, such as when the boat is docked. The “AIR” hose
is connected to the upper portion of the lower case and the “OIL” hose is connected to the end of the
torpedo from the front portion of the lower case. When the outboard motor is tilted up, the gear oil that
collects in the end of the torpedo is extracted from this hose and the lower unit is filled with gear oil
from this hose. When the lower unit is filled with gear oil while the outboard motor is tilted up 60° or
more, the lower unit will be filled with gear oil up to the specified level. Therefore, if the outboard motor
cannot be tilted up 60° or more, fill the lower unit with the specified amount of gear oil while being care-
ful not to overfill the lower unit.
For the changing procedure, see “Changing the gear oil using an oil changer” (10-15).
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