Yamaha 115 C Service Manual

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2-10
001082
001049
q
tw
u
y
e
r
001078
EMU01614
DIGITAL TACHOMETER
This gauge contains the tachometer, trim
meter, hour meter, oil level indicator, and
the overheat warning indicator.
1Tachometer
2Trim meter
3Hour meter
4Oil level indicator
5Overheat warning indicator
6Set button
7Mode button
NOTE:
All segments of the display will light
momentarily after the main switch is
turned on and will return to normal there-
after.
EMU00136
Tachometer
This meter shows the engine speed.
 64C-9-18-2  2/18/03 9:59...

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2-11
001087
EMU01620
Hour Meter
This meter shows the number of hours
the engine has been run. It can be set to
show the total number of hours or the
number of hours for the current trip. The
display can also be turned on and off.
8Changing the display format
Pressing the MODE button changes the
display format in the following circular pat-
tern:
Total hours - Trip hours - Display off
8Resetting the trip hours
Simultaneously pressing the SET and
MODE buttons for more than 1 second
while the trip hours...

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2-12
001051q
001052
q
EMU01553
Overheat Warning Indicator
If the engine temperature rises too high,
the warning indicator will start to blink.
Refer to “OVERHEAT WARNING” for
details.
1Overheat warning indicator
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Do not continue to operate the engine if a
warning device has activated. If neces-
sary, refer to the “TROUBLESHOOTING”
section in this manual. Consult your deal-
er if the problem cannot be located and
corrected.
EMU00138
Oil-Level Indicator
This indicator shows the engine oil level.
If the...

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2-13
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802023*
EMD25110
Speedometer
The meter will show the boat speed.
NOTE:
The speedometer displays km/h, mph, or
knots, depending upon operator prefer-
ence. Select the desired unit of measure-
ment by setting the selector switch on the
back of the meter. See the illustration for
setting.
1Cap
2Selector switch (For speed unit)
3Selector switch (For fuel sender)
802034
TRIP TIME BATT
Km/h
knot
mph
km
mileSPEEDYAMAHA
set
mode
802016*
TRIP TIME BATT
Km/h
knot
mph
km
mileSPEEDYAMAHA
set
mode
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2-14
802024
TRIP TIME BATT
Km/h
knot
mph
km
mileSPEEDYAMAHA
set
mode
EMU01274
Trip Meter
This meter displays the distance the boat
has traveled since the meter was last
reset.
Repeatedly push and release the “mode”
button until the indicator on the face of
the meter points to “TRIP”. To reset the
trip meter to “0”, press the “set” and
“mode” button together.
NOTE:
8The trip distance is shown in kilometers
or miles depending upon the unit of
measurement selected for the
speedometer.
8The trip distance...

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2-15
EMD40410
Warning indicator
8Fuel warning
If the fuel level decreases to one segment
the fuel level warning segment 1begins
blinking.
8Low battery voltage warning
If battery voltage drops, the display 2will
be automatically turned on and it begins
blinking.
cC
Do not continue to operate the engine if a
warning device has activated. Refer to
the TROUBLESHOOTING section in this
manual. Consult a Yamaha dealer if the
problem cannot be located and corrected.
802031
TRIP TIME BATT
Km/h
knot
mph
km...

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2-16
YAMAHA
set
mode
P Smpg Km/Lgph
I/h
ECON SYNC TTL
FUEL MANAGEMENT
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EMD42012
FUEL MANAGEMENT METER
Optional equipment
The meter contains the fuel flow meter,
fuel consumption meter, fuel economy
meter, twin engine speed synchronizer,
water separator warning indicator.
1Fuel flow meter
2Fuel consumption/Fuel economy
meter/Twin engine speed synchronizer
3Water separator warning indicator
(Operates only if the sensor has been
installed.)
NOTE:
After the main switch is first turned on, all
portions...

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P Smpg Km/L
gph
I/h
ECON SYNC TTL
FUEL MANAGEMENT
EMU01277
Fuel Economy
This meter displays the distance per liter
or gallon when cruising for reference use
by the operator.
Repeatedly push and release the “mode”
button until the indicator on the face of
the meter points to “ECON.”
NOTE:
If twin engines are installed on your boat,
the meter will display only the total fuel
economy of both engines.
P Smp Kmgph
I/h
ECON SYNC TTL
FUEL MANAGEMENT
/L
g
EMU01276
Fuel Consumption Meter
This meter...

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2-18
NOTE:
8Fuel consumption varies greatly with
boat design, weight, propeller used,
engine trim angle, sea conditions
(including wind), and throttle position.
Fuel consumption also varies slightly
with the type of water (salt, fresh, and
contaminate levels), air temperature
and humidity, cleanliness of the boat
bottom, engine mounting height, skill of
the operator, and individual gasoline
formulation (winter or summer fuel and
amount of additives).
8The Yamaha digital speedometer and
fuel management...

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EMU01278
Twin Engine Speed Synchronizer
This meter displays the difference in
engine speed (r/min) between the Port
and Starboard engines for reference pur-
poses when synchronizing the two
engines’ speeds.
Repeatedly push and release the “mode”
button until the indicator on the face of
the meter points to “SYNC”.
1Port side engine speed is higher
2Port side engine speed is slightly higher
3Engine speed is synchronized evenly
between Port and Starboard side engines
4Starboard side engine speed is...