Maintenance
65
IP:
Correct idling speed inspection is only possi-
ble if the engine is fully warmed up. If not
warmed up fully, the idle speed will measure
higher than normal. If you have difficulty ver-
ifying the idle speed, or the idle speed re-
quires adjustment, consult a Yamaha dealer
or other qualified mechanic.
2. Verify whether the idle speed is set to
specification. For idle speed specifica-
tions, see page 13.
EMU29061
Checking water in engine oil tank
A translucent water drain hose is connected
from the bottom of the oil tank to the filler
neck. If water or foreign matter collects in this
hose, consult a Yamaha dealer.
EMU29112
Checking wiring and connectors
●
Check that each grounding wire is properly
secured.
●
Check that each connector is engaged se-
curely.
EMU32111
Checking propeller
WARNING
EWM01880
You could be seriously injured if the en-
gine accidentally starts when you are
near the propeller.
●
Before inspecting, removing, or install-
ing the propeller, place the shift control
in neutral, turn the main switch to “ ”
(off) and remove the key, and remove
the clip from the engine shut-off switch.
Turn off the battery cut-off switch if
your boat has one.
Do not use your hand to hold the propeller
when loosening or tightening the propeller
nut. Put a wood block between the anti-cavi-
tation plate and the propeller to prevent the
propeller from turning.
Checkpoints
1. Drain hose
2. Filler neck side
ZMU03898
2
1
ZMU03841
ZMU01897
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