INSTRUMENT AND CONTROL FUNCTIONS
3-4
3
EAUM2821
Multi-function display (NS50)TIPThe multi-function display performs the
following self-test for three seconds in
order to check the electrical circuit.●
The speedometer digits display
from 0 to 80, and then from 80 to 0
in kilometers. If the speedometer is
set to miles, the digits will display
from 0 to 50, and then from 50 to 0.
●
All LCD segments and warning
lights come on and then go off.
WARNING
EWA12312
Be sure to stop the vehicle before
making any setting changes to the
multi-function display. Changing
settings while riding can distract the
operator and increase the risk of an
accident.The multi-function display is equipped
with the following:●
a digital clock
●
a digital speedometer (which
shows riding speed)
●
an odometer (which shows the to-
tal distance traveled)
●
a tripmeter (which shows the dis-
tance traveled since it was last set
to zero)
●
a fuel reserve tripmeter (which
shows the distance traveled on the
fuel reserve)
●
a fuel gauge
●
a self-diagnosis device
TIP●
Be sure to turn the key to “ ” be-
fore using the “RESET/SELECT”
button.
●
For the U.K. only: To switch the
speedometer and odometer/trip-
meter displays between kilometers
and miles, when the main switch is
turned to “ ”, press the “RE-
SET/SELECT” button for at least
eight seconds.
To set the clock:1. Select the odometer and push the
“RESET/SELECT” button for at
least three seconds.
2. When the hour digits start flashing,
push the “RESET/SELECT” button
to set the hours.
3. To change the minutes digits, push
the “RESET/SELECT” button for
at least three seconds.
1. Speedometer
2. Clock
3. “RESET/SELECT” button
4. Odometer/tripmeters/fuel reserve tripmeter
5. Fuel gaugeZAUM0911
1
2
34
5
ZAUM0912
U1PHE0E0.book Page 4 Wednesday, August 29, 2012 4:42 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-5
3 4. When the minutes digits start
flashing, push the “RESET/SE-
LECT” button to set the minutes.
5. Push the “RESET/SELECT” but-
ton for at least three seconds to
start the clock.
TIPAfter setting the clock, be sure to push
the “RESET/SELECT” button for at
least three seconds before turning the
key to “ ”, otherwise the clock will not
be set.Odometer and tripmeter modes
Pushing the “RESET/SELECT” button
switches the display between the
odometer mode “ODO” and the tripme-
ter “TRIP” in the following order:ODO → TRIP → ODO
If the fuel level warning indicator comes
on (see page 3-2), the odometer dis-
play will automatically change to the
fuel reserve tripmeter mode “TRIP F”
and start counting the distance traveled
from that point. In that case, pushing
the “RESET/SELECT” button switches
the display between the various tripme-
ter and odometer modes in the follow-
ing order:
TRIP F → ODO → TRIP → TRIP FTo reset a tripmeter, select it by push-
ing the “RESET/SELECT” button, and
then push it again for at least three sec-
onds. If you do not reset the fuel re-
serve tripmeter manually, it will reset
itself automatically and the display will
return to the prior mode after refueling
and traveling 5 km (3 mi).
TIPThe display cannot be changed back to
“TRIP F” after pushing the “RESET/SE-
LECT” button.Fuel gauge
The fuel gauge indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel gauge disappear to-
wards “E” (Empty) as the fuel level
ZAUM0913
ZAUM0914
RESET/
SELECT
RESET/
SELECT
ZAUM0915
RESET/
SELECT
RESET/
SELECT
RESET/
SELECT
U1PHE0E0.book Page 5 Wednesday, August 29, 2012 4:42 PM
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
EAU13221
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAUM2730
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different
brand. Use of unleaded fuel will extend
spark plug life and reduce maintenance
costs.
1. Fuel tank filler tube
2. Maximum fuel levelZAUM0923
1
2
Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
7.0 L (1.85 US gal, 1.54 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on):
1.0 L (0.26 US gal, 0.22 Imp.gal)
U1PHE0E0.book Page 9 Wednesday, August 29, 2012 4:42 PM
SPECIFICATIONS
8-1
8
Dimensions:Overall length:
1870 mm (73.6 in)
Overall width:
NS50 700 mm (27.6 in)
NS50N 725 mm (28.5 in)
Overall height:
NS50 1155 mm (45.5 in)
NS50N 1115 mm (43.9 in)
Seat height:
815/930 mm (32.1/36.6 in)
Wheelbase:
1275 mm (50.2 in)
Ground clearance:
130 mm (5.12 in)
Minimum turning radius:
2000 mm (78.7 in)Weight:Curb weight:
97 kg (214 lb)Engine:Engine type:
Liquid cooled 2-stroke
Cylinder arrangement:
Single cylinder
Displacement:
49 cm³
Bore × stroke:
40.0 × 39.2 mm (1.57 × 1.54 in)
Compression ratio:
11.50–12.50 : 1
Starting system:
Electric starter and kickstarterLubrication system:
Separate lubrication (Yamaha autolube)
Engine oil:Type:
YAMALUBE 2S or 2-stroke engine oil
(JASO FC grade) or (ISO EG-C or EG-D
grade)
Engine oil quantity:
Quantity:
1.40 L (1.48 US qt, 1.23 Imp.qt)Final transmission oil:Type:
SAE 10W-30 type SE motor oil
Quantity:
0.11 L (0.12 US qt, 0.10 Imp.qt)Cooling system:Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes):
1.20 L (1.27 US qt, 1.06 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
7.0 L (1.85 US gal, 1.54 Imp.gal)
Fuel reserve amount:
1.0 L (0.26 US gal, 0.22 Imp.gal)Carburetor:Type × quantity:
PHVA 12 ZS x 1
Spark plug(s):Manufacturer/model:
NGK/BR8HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction ratio:
1
Final drive:
Gear
Secondary reduction ratio:
52/13 × 43/14 (12.286)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic typeChassis:Frame type:
Underbone
Caster angle:
27.00 °
Trail:
87 mm (3.4 in)Front tire:Type:
Tubeless
Size:
120/70-13 53P(Michelin)
53L(SAVA,Metzeler)
Manufacturer/model:
MICHELIN/POWER PURE SC
U1PHE0E0.book Page 1 Wednesday, August 29, 2012 4:42 PM