If The Engine Fails To Start; After The Engine Has Started; Warm Up Mode (Shift Disconnect) - Yanmar 8LV320 Operation Manual

If the Engine Fails to Start

Before pressing the Start switch again, confirm that
the engine has stopped completely. If the starter
motor is operated before the engine has completely
stopped, the starter motor pinion gear will be
damaged.
NOTICE
The starter will run continuously for 15 seconds and
then stop.
If the engine does not start the first time, wait for
about 15 seconds before trying again.
NOTICE
If the vessel is equipped with a water lift (water
lock) muffler, excessive cranking could cause
seawater to enter the cylinders and damage the
engine. If the engine does not start after cranking
15 seconds, close the thru-hull water intake valve to
avoid filling the muffler with water. Crank for 15
seconds or until the engine starts. When the engine
does start, stop the engine immediately and press
the stop switch. Be sure to re-open the seacock
and restart the engine. Operate the engine
normally.

After the Engine has Started

After the engine has started, check the following
items at a low engine speed:
1. Check that the indicators on the display and the
control head are normal.
2. Check for water or oil leakage from the engine.
3. Check that exhaust color, engine vibrations,
and sound are normal.
4. When there are no problems, keep the engine
at low speed to send engine oil to all parts of
the engine.
5. Check that sufficient seawater is discharged
from the seawater outlet pipe. Operation with
inadequate seawater discharge will damage the
impeller of the seawater pump. If seawater
discharge is too small, stop the engine
immediately. Identify the cause and repair.
• Is the seacock open?
• Is the inlet of the seacock on the hull bottom
clogged?
• Is the seawater suction hose broken, or does
the hose suck in air due to a loose joint?
8LV Series Operation Manual
The engine will seize if it is operated when
seawater discharge is too small or if load is
applied without any warming up operation.
WARM UP MODE
(SHIFT DISCONNECT)
1. Move the control head handle to the N (Neutral)
position. (The NEUTRAL lamp will come on)
2. Press the "NTRL" switch of the selected station
control head.
3. The NEUTRAL lamp will come on, and the
NEUTRAL lamp will flash.
4. Move the Throttle Handle. The engine speed
can be controlled while the gear shift is in
neutral.
5. Move the control head handle to the N (Neutral)
position, press the "NTRL" switch and cancel
warm up mode.
Control head panel
ENGINE OPERATION
NOTICE
037638-00X03
Figure 5
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