2012 YAMAHA JOG50R engine

To install the 2-stroke engine oil tank
cap, push it into the oil tank opening.
EWA10141
sWARNING
Make sure that the fuel and 2-stro-
ke engine oil tank caps are properly
installed before riding the scooter.
Leaking fuel is a fire hazard.
EAU13212
Fuel
Make sure there is sufficient gasoline
in the tank.
EWA10881
sWARNING
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 engi-
ne and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the
vicinity 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. 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.
1. Fuel tank filler tube
2. Fuel level
3. Wipe up any spilled fuel imme-
diately. NOTICE: Immediately
wipe off spilled fuel with a cle-
an, dry, soft cloth, since fuel
may deteriorate painted surfa-
ces or plastic parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
EWA15151
sWARNING
Gasoline is poisonous and can cau-
se injury or death. Handle gasoline
with care. Never siphon gasoline by
mouth. If you should swallow some
gasoline or inhale a lot of gasoline
vapor, or get some gasoline in your
1
2
ZAUM0020
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3

eyes, see your doctor immediately.
If gasoline spills on your skin, wash
with soap and water. If gasoline
spills on your clothing, change your
clothes.
EAU13270
Your Yamaha engine has been desig-
ned to use regular unleaded gasoline
with a research octane number of 91
or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark
plug life and reduce maintenance
costs.
EAU13432
Catalytic converter
This model is equipped with a cataly-
tic converter in the exhaust system.
EWA10861
sWARNING
The exhaust system is hot after
operation. To prevent a fire hazard
or burns:
●Do not park the vehicle near
possible fire hazards such as
grass or other materials that
easily burn.
●Park the motorcycle in a place
where pedestrians or children
are not likely to touch the hot
exhaust system.
●Make sure that the exhaust
system has cooled down befo-
re doing any maintenance
work.
●Do not allow the engine to idle
more than a few minutes. Long
idling can cause a build-up of
heat.
ECA10701
NOTICE
Use only unleaded gasoline. The
use of leaded gasoline will cause
unrepairable damage to the cataly-
tic converter.
Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
5.5 L (1.45 US gal, 1.21 Imp.gal)
Fuel reserve amount:
1.9 L (0.50 US gal, 0.42 Imp.gal)
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3

EAUS1500
2-stroke engine oil
Make sure that there is sufficient 2-
stroke engine oil in the oil tank. Add
the recommended 2-stroke engine oil
as necessary.
To access the 2-stroke engine oil
tank, open the storage compartment.
See page 3-11).
1. Remove the 2-stroke engine oil
tank cap by pulling it off.
2 Install the 2-stroke engine oil tank
cap by pushing it into the oil tank
opening.
TIP
Make sure that the 2-stroke engine oil
tank cap is properly installed before
riding the vehicle.
EAUS1050
Kickstarter
1. Kickstarter lever
To start the engine, push the kickstar-
ter down lightly with your foot until the
gears engage, and then push it down
smoothly but forcefully.
1
Recommended oil:
See page 8-1
Oil quantity:
1.4 L (1.48 US qt) (1.23 Imp.qt)
INSTRUMENT AND CONTROL FUNCTIONS
3-10
3

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
EAU15605
Pre-operation check list
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary.3-8
• Check fuel line for leakage.
• Check oil level in oil tank.
2-stroke engine oil• If necessary, add recommended oil to specified level. 3-10
• Check vehicle for oil leakage.
Final transmission oil• Check vehicle for oil leakage. 6-7
• Check coolant level in reservoir.
Coolant (CS50Z)• If necessary, add recommended coolant to specified level. 6-8
• Check cooling system for leakage.
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Front brake• Replace if necessary. 6-13, 6-14, 6-15
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
Rear brake• Lubricate cable if necessary.
• Check lever free play.6-13, 6-14
• Adjust if necessary.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
• If necessary, have Yamaha dealer adjust cable free play 6-10, 6-16
and lubricate cable and grip housing.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
• Check air pressure.6-11, 6-12
• Correct if necessary.

EAU15951
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do
not understand, ask your Yamaha
dealer.
EWA10271
sWARNING
Failure to familiarize yourself with
the controls can lead to loss of
control, which could cause an acci-
dent or injury.
EAU16562
Starting a cold engineECA10250
NOTICE
See page 5-4 for engine break-in
instructions prior to operating the
vehicle for the first time.
1. Turn the key to “ ”, and when
the oil level warning light comes
on, turn it to “ ”.
ECA10240
NOTICE
If the oil level warning light does
not come on, have a Yamaha dealer
check the electrical circuit.
2. Close the throttle completely.3. While applying the front or rear
brake, start the engine by pus-
hing the start switch or by pus-
hing the kickstarter lever down.
NOTICE: For maximum engine
life, never accelerate hard
when the engine is cold!
[ECA11041]
If the engine fails to start by pus-
hing the start switch, release the
switch, wait a few seconds, and
then try again. Each starting
attempt should be as short as
possible to preserve the battery.
Do not crank the engine more
than 5 seconds on any one
attempt. If the engine does not
start with the starter motor, try
using the kickstarter.
ZAUM0367
OPERATION AND IMPORTANT RIDING POINTS
5-1
5

EAU16761
Starting off
TIP
Before starting off, allow the engine to
warm up.
1. While pulling the rear brake lever
with your left hand and holding
the grab bar with your right hand,
push the scooter off the centers-
tand.
1. Grab bar
2. Rear brake lever
2. Sit astride the seat, and then
adjust the rear view mirrors.
3. Switch the turn signals on.4. Check for oncoming traffic, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signals off.
EAU16780
Acceleration and
deceleration
The speed can be adjusted by ope-
ning and closing the throttle. To incre-
ase the speed, turn the throttle grip in
direction (a). To reduce the speed,
turn the throttle grip in direction (b).
(b)
(a)
ZAUM0199
21
OPERATION AND IMPORTANT RIDING POINTS
5-2
5

EAU16793
BrakingEWA10300
sWARNING
●Avoid braking hard or suddenly
(especially when leaning over
to one side), otherwise the sco-
oter may skid or overturn.
●Railroad crossings, streetcar
rails, iron plates on road cons-
truction sites, and manhole
covers become extremely slip-
pery when wet. Therefore, slow
down when approaching such
areas and cross them with cau-
tion.
●Keep in mind that braking on a
wet road is much more difficult.
●Ride slowly down a hill, as bra-
king downhill can be very diffi-
cult.
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.Front
Rear
EAU16820
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the follo-
wing tips to reduce fuel consumption:
●Avoid high engine speeds during
acceleration.
●Avoid high engine speeds with no
load on the engine.
●Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at
traffic lights or at railroad cros-
sings).
OPERATION AND IMPORTANT RIDING POINTS
5-3
5

EAU16830
Engine break-in
There is never a more important
period in the life of your engine than
the period between 0 and 1000 km
(600 mi). For this reason, you should
read the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themsel-
ves to the correct operating clearan-
ces. During this period, prolonged
full-throttle operation or any condition
that might result in engine overhea-
ting must be avoided.
EAU17213
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
EWA10311
sWARNING
●Since the engine and exhaust
system can become very hot,
park in a place where pedes-
trians or children are not likely
to touch them and be burned.
●Do not park on a slope or on
soft ground, otherwise the
vehicle may overturn, increa-
sing the risk of a fuel leak and
fire.
●Do not park near grass or other
flammable materials which
might catch fire.
OPERATION AND IMPORTANT RIDING POINTS
5-4
5