Yamaha E70 Owners Manual

Instruments and indicators
45
EMU31622
Command link multifunction 
speedometers
The speedometer unit shows the boat speed
and has functions of fuel meter and system
voltage display. The chosen display is se-
lected by using the “ ” (set) and “ ”
(mode) buttons as described in this section.
In addition, the speedometer can show the
desired unit of measurement such as km/h,
mph, or knots. If the speed sensor is in-
stalled, the unit can also show the trip dis-
play. However, even if the speed sensor is
not...

Instruments and indicators
46
ation.
For more information, see the operation
manual originally supplied with the meter.
1. Set button
2. Mode button
1. Fuel flow meter
2. Multifunction display
2
1
ZMU05438
1
2
ZMU05439
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47
Engine control system
EMU26803
Alert system
NOTICE
ECM00091
Do not continue to operate the engine if a
alert device has activated. Consult your
Yamaha dealer if the problem cannot be
located and corrected.
EMU2681C
Overheat alert
This engine has an overheat-alert device. If
the engine temperature rises too high, the
alert device will activate.
●The engine speed will automatically de-
crease to about 2000 r/min.
●The overheat-alert indicator will light or
blink.
●The buzzer will sound (if equipped on...

Engine control system
48
with a low oil pressure-alert indicator, it will
light or blink.
●The buzzer will sound (if equipped on the
tiller handle, remote control box, or main
switch panel).If the alert system has activated, stop the en-
gine as soon as it is safe to do so. Check the
oil level and add oil as needed. If the oil level
is correct and the alert device does not
switch off, consult your Yamaha dealer.
ZMU04994
ZMU07104
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49
Installation
EMU26902
Installation
The information presented in this section is
intended as reference only. It is not possible
to provide complete instructions for every
possible boat and motor combination. Proper
mounting depends in part on experience and
the specific boat and motor combination.
WA R N I N G
EWM01590
●Overpowering a boat could cause se-
vere instability. Do not install an out-
board motor with more horsepower
than the maximum rating on the capac-
ity plate of the boat. If the boat...

Installation
50
NOTICE
ECM01634
●Make sure that the idle hole is high
enough to prevent water from entering
the engine even if the boat is stationary
with the maximum load.
●Incorrect engine height or obstructions
to the smooth flow of water (such as the
design or condition of the boat, or ac-
cessories, such as transom ladders or
depth finder transducers) can create
airborne water spray while the boat is
cruising. If the outboard motor is oper-
ated continuously in the presence of
airborne water spray,...

51
Operation
EMU36381
First-time operation
EMU36391
Fill engine oil
The engine is shipped from the factory with-
out engine oil. If your dealer did not fill the oil,
you must fill it before starting the engine.
NOTICE: Check that the engine is filled
with oil before first-time operation to
avoid severe engine damage.
 [ECM01781] 
The engine is shipped with the following
sticker, which should be removed after en-
gine oil is filled for the first time. For more in-
formation on checking the engine oil...

Operation
52
A good rule is to use 1/3 of your fuel to get to
the destination, 1/3 to return, and to keep 1/3
as an emergency reserve. With the boat lev-
el on a trailer or in the water, turn the key to
“ ” (on) and check the fuel level. For fuel
filling instructions, see page 55.
EMU36571
Remove the top cowling
For the following checks, remove the top
cowling from the bottom cowling. To remove
the top cowling, release the cowling lock le-
ver and lift off the top cowling.
EMU36442
Fuel system
WA R N I N...

Operation
53
turns smoothly and that it completely re-
turns to the fully closed position.
●Look for loose or damaged connections of
the throttle and shift cables.
Remote control models:
●Turn the steering wheel full-right and full-
left. Make sure operation is smooth and
unrestricted throughout the whole range
with no binding or excessive free play.
●Operate the throttle levers several times to
make sure there is no hesitation in their
travel. Operation should be smooth over
the complete range of...

Operation
54
level mark and lower level mark. Consult
your Yamaha dealer if the oil level is out
of specified level or if it appears milky or
dirty.
EMU27153
Engine
●Check the engine and engine mounting.
●Look for loose or damaged fasteners.
●Check the propeller for damage.
●Check for engine oil leaks.EMU36492
Flushing device
Check that the flushing device’s garden hose
connector is securely screwed on to the fit-
ting on the bottom cowling. NOTICE: If the
garden hose connector is not properlyconnected,...