Inspecting Wiring And Connectors; Checking Propeller - Yamaha 2D Owner's Manual

 Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
 The propeller rotates whenever the en-
gine is running. Do not move the throttle
control lever from the start position dur-
ing warm-up. The boat could unexpect-
edly start to move, which could result in
an accident.
ECM01521
NOTICE
This procedure must be performed while
the outboard motor is in the water. A test
tank can be used.
A diagnostic tachometer should be used for
this procedure. Results may vary depending
on whether testing is conducted with the
flushing attachment, in a test tank, or with the
outboard motor in the water.
1. Start the engine and allow it to warm up
fully with the throttle in the start position
or less until it is running smoothly. If the
outboard is mounted on a boat, be sure
the boat is tightly moored.
2. Once the engine has warmed up, verify
whether the idle speed is set to specifi-
cation. For idle speed specifications, see
page 8. If you have difficulty verifying the
idle speed, or the idle speed requires ad-
justment, consult a Yamaha dealer or
other qualified mechanic.
EMU29116

Inspecting wiring and connectors

 Inspect that each connector is engaged se-
curely.
 Inspect that each ground lead is properly
secured.
EMU32123

Checking propeller

EWM01882
WARNING
You could be seriously injured if the en-
gine accidentally starts when you are near
the propeller. Before inspecting, remov-
ing, or installing 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
 Check each of the propeller blades for ero-
sion from cavitation or ventilation, or other
damage.
 Check the propeller shaft for damage.
 Check the shear pin for wear or damage.
 Check for fish line tangled around the pro-
peller shaft.
 Check the propeller shaft oil seal for dam-
age.
Maintenance
40