2006 YAMAHA JOG50R spark plug

SAFETY INFORMATION.....................1-1
DESCRIPTION.....................................2-1
Left view ...........................................2-1
Right view .........................................2-2
Controls and instruments .................2-3
INSTRUMENT AND CONTROL
FUNCTIONS........................................3-1
Main switch/steering lock .................3-1
Indicator lights ..................................3-1
Speedometer unit .............................3-2
Fuel gauge ........................................3-3
Clock .................................................3-3
Handlebar switches ..........................3-3
Front brake lever...............................3-4
Rear brake lever................................3-4
Fuel and 2-stroke engine oil tank
caps ...............................................3-4
Fuel ...................................................3-5
2-stroke engine oil ............................3-5
Kickstarter.........................................3-6
Seat...................................................3-6
Storage compartment.......................3-6
PRE-OPERATION CHECKS...............4-1
Pre-operation check list....................4-2
OPERATION AND IMPORTANT RIDING
POINTS................................................5-1
Starting a cold engine ......................5-1Starting off ........................................5-1
Acceleration and deceleration ..........5-2
Braking..............................................5-2
Engine break-in.................................5-2
Parking ..............................................5-2
PERIODIC MAINTENANCE AND
MINOR REPAIR...................................6-1
Periodic maintenance and
lubrication chart ............................6-2
Checking the spark plug ..................6-5
Final transmission oil ........................6-6
Coolant (only for liquid-cooled
models) ..........................................6-6
Cleaning the air filter element ...........6-8
Adjusting the carburetor ...................6-9
Adjusting the throttle cable free
play ................................................6-9
Tires ..................................................6-9
Adjusting the brake lever free
play ..............................................6-11
Adjusting the rear brake lever free
play ..............................................6-11
Checking the front brake pads
and rear brake shoes ..................6-12
Checking the front brake fluid
level .............................................6-13
Changing the brake fluid ................6-13
Checking and lubricating the
cables ..........................................6-13Checking and lubricating the
throttle grip and cable .................6-14
Adjusting the Autolube pump .........6-14
Lubricating the front and rear
brake levers .................................6-14
Checking and lubricating the
centerstand .................................6-14
Checking the front fork ...................6-15
Checking the steering.....................6-15
Checking the wheel bearings .........6-15
Replacing the headlight bulb or a
front turn signal light bulb ...........6-16
Replacing a turn signal light bulb
or the tail/brake light bulb ...........6-16
Replacing the license plate light
bulb .............................................6-17
Battery ............................................6-17
Replacing the fuse ..........................6-18
Troubleshooting ..............................6-19
Troubleshooting chart .....................6-20
SCOOTER CARE AND STORAGE.....7-1
Care ..................................................7-1
Storage .............................................7-3
SPECIFICATIONS...............................8-1
CONSUMER INFORMATION.............9-1
Identification numbers ......................9-1
TABLE OF CONTENTS
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2-stroke engine oil tank cap
To remove the 2-stroke engine oil tank
cap, pull it off.
To install the 2-stroke engine oil tank
cap, push it into the oil tank opening.
EWA10140
s s
WARNING
Make sure that the fuel and 2-stro-
ke engine oil tank caps are properly
installed before riding the scooter.
EAU13220
Fuel
1. Refill pipe
2. Fuel level
Make sure that there is sufficient fuel
in the tank. When refueling, be sure to
insert the pump nozzle into the fuel
tank filler hole and to fill the tank to
the bottom of the filler tube as shown.
EWA10880
s s
WARNING
Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
Avoid spilling fuel on the hot
engine.
ECA10070
CAUTION
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfa-
ces or plastic parts.
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.
EAU13460
2-stroke engine oil
Make sure that there is sufficient oil in
the 2-stroke engine oil tank. Add the
recommended 2-stroke engine oil if
necessary.
NOTE:
Make sure that the 2-stroke engine oil
tank cap is properly installed.
Recommended oil:
Yamalube 2 or equivalent 2-stroke
engine oil (JASO grade “FC”, or
ISO grades “EG-C” or “EG-D”)
Oil quantity:
1,4L (0,31 US qt)(1,23 Imp.qt)Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
5,5L (1,21 US gal) (4,8Imp.gal)
Fuel reserve amount:
1,9L(0,42US gal) (1,67Imp.gal)
3
INSTRUMENT AND CONTROL FUNCTIONS
3-5
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EAU17710
Periodic maintenance and lubrication chart
NOTE:
The annual checks must be performed every year, except if a kilometer-based maintenance is performed
instead.
From 30000 km, repeat the maintenance intervals starting from 6000 km.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
ODOMETER READING (x 1000 Km) ANNUAL
NOITEM CHEK OR MAINTENANCE JOB 1 6 12 18 24CHECK
1*Fuel line• Check fuel and vacuum hoses for cracks or damage.√√√√ √
• Check condition.
2
Spark plug• Clean and regap.√√
• Replace.√√
3Air filter element• Clean.√√• Replace.√√
4*Front brake• Check operation, fluid level and vehicle for fluid leakage.√√ √ √√ √• Replace brake pads. Whenever worn to the limit
5*Rear brake• Check operation and adjust brake lever free play.√√ √ √√ √• Replace brake shoes. Whenever worn to the limit
6*Brake hose• Check for cracks or damage.√√√√ √• Replace. Every 4 years
7*Wheels• Check runout and for damage.√√√√
• Check tread depth and for damage.
8*Tires• Replace if necessary.
√√√√ √
• Check air pressure.
• Correct if necessary.
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EAU19602
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause
any spark plug to slowly erode, the
spark plug should be removed and
checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.
To remove the spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as
shown, with the spark plug
wrench included in the owner’s
tool kit.
To check the spark plug
1. Check that the porcelain insula-
tor around the center electrode of
the spark plug is a medium-to-
light tan (the ideal color when the
vehicle is ridden normally).
NOTE:
If the spark plug shows a distinctly
different color, the engine could be
defective. Do not attempt to diagnosesuch problems yourself. Instead, have
a Yamaha dealer check the vehicle.
2. Check the spark plug for electro-
de erosion and excessive carbon
or other deposits, and replace it if
necessary.
To install the spark plug
1. Distance between electrodes
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to spe-
cification.2. Clean the surface of the spark
plug gasket and its mating surfa-
ce, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then
tighten it to the specified torque.
NOTE:
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is
1/4~1/2 turn past finger tight. Howe-
ver, the spark plug should be tighte-
ned to the specified torque as soon
as possible.
4. Install the spark plug cap.
Tightening torque:
Spark plug:
20 Nm (2,0 m•kgf, 14,6 ft•lbf)
Spark plug gap:
0,6 ~ 0,7 mm (0,24 ~ 0,27in)
Specified spark plug:
BR8HS/NGK
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-5
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
Check the fuel level in
the fuel tank.
1. FuelThere is enough fuel.
There is no fuel.Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.
2. CompressionThere is compression.
There is no compression.Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. IgnitionWipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.
4. BatteryThe engine turns over
quickly.
The engine turns over
slowly.The battery is good.
Check the battery lead connections,
and charge the battery if necessary.
Dry
WetOpen the throttle halfway and operate
the electric starter.
EAU25901
Troubleshooting chartEWA10840
s s
WARNING
Keep away open flames and do not smoke while checking or working on the fuel system.
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EAU26090
Care
While the open design of a scooter
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go
unnoticed on a car, however, it
detracts from the overall appearance
of a scooter. Frequent and proper
care does not only comply with the
terms of the warranty, but it will also
keep your scooter looking good,
extend its life and optimize its perfor-
mance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and
covers as well as all electrical
couplers and connectors, inclu-
ding the spark plug cap, are
tightly installed.
3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such pro-ducts onto seals, gaskets and
wheel axles. Always rinse the dirt
and degreaser off with water.
Cleaning
ECA10780
CAUTION
Avoid using strong acidic whe-
el cleaners, especially on spo-
ked wheels. If such products
are used on hard-to-remove
dirt, do not leave the cleaner on
the affected area any longer
than instructed. Also, tho-
roughly rinse the area off with
water, immediately dry it, and
then apply a corrosion protec-
tion spray.
Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use
only a soft, clean cloth or spon-
ge with mild detergent and
water to clean plastic.
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent orthinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.
Do not use high-pressure was-
hers or steam-jet cleaners sin-
ce they cause water seepage
and deterioration in the follo-
wing areas: seals (of wheel and
swingarm bearings, fork and
brakes), electric components
(couplers, connectors, instru-
ments, switches and lights),
breather hoses and vents.
For scooters equipped with a
windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or scrat-
ching. Some cleaning com-
pounds for plastic may leave
scratches on the windshield.
Test the product on a small hid-
den part of the windshield to
make sure that it does not lea-
ve any marks. If the windshield
is scratched, use a quality
plastic polishing compound
after washing.
7
SCOOTER CARE AND STORAGE
7-1
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NOTE:
Consult a Yamaha dealer for advice
on what products to use.
EAU26300
Storage
Short-term
Always store your scooter in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA10820
CAUTION
Storing the scooter in a poorly
ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity to
seep in and cause rust.
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
Long-term
Before storing your scooter for seve-
ral months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Drain the carburetor float cham-ber by loosening the drain bolt;
this will prevent fuel deposits
from building up. Pour the drai-
ned fuel into the fuel tank.
3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
4. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap and
spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit sparking
during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, and then install
the spark plug and the spark plug
cap.
EWA10950
s s
WARNING
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
5. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/centerstand.
6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alter-
natively, turn the wheels a little
every month in order to prevent
the tires from becoming degra-
ded in one spot.
7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
8. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a
month. Do not store the battery in
an excessively cold or warm pla-
ce [less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more
7
SCOOTER CARE AND STORAGE
7-3
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DimensionsOverall length
1740 mm
Overall width
675 mm
Overall height
1065 mm
Seat height
770 mm
Wheelbase
1210 mm
Ground clearance
132 mm
WeightWith oil and fuel
CS50 80.5 kg
CS50Z 83.7 kg
EngineEngine type
CS50 Air cooled 2-stroke
CS50Z Liquid cooled 2-stroke
Cylinder arrangement
Forward-inclined single cylinder
Displacement
49.2 cm3
Bore x stroke
40.0 x 39.2 mm
Compression ratio
CS50 10.20 :1
CS50Z 11.40 :1
Starting system
Electric starter and kickstarter
Lubrication system
Separate lubrication (Yamaha autolube)Type
YAMALUBE 2-cycle oil or 2-stroke engine
oil
Engine oil quantityQuantity
1.4 L
Transmission oilType
YAMALUBE 4 (10W30) or SAE10W30
type SE motor oil
Oil change quantity
0.10 L
Air filter element
Wet element
Fuel
Recommended fuel
Regular unleaded gasoline
Fuel tank capacity
5.5 L
CarburetorManufacturer
CS50 DELLORTO GURTNER
CS50Z DELLORTO
Type x quantity
CS50 PHVA 12 ZS/1 PY 12/1
CS50Z PHVA 12 ZS/1
Spark plug(s)Manufacturer/model
NGK/BR8HS
Spark plug gap
0.6-0.7 mm
Clutch type
Dry, centrifugal automatic
TransmissionPrimary reduction system
Helical gear
Primary reduction ratio
52/13 (4.000)
Secondary reduction system
Spur gear
Secondary reduction ratio
CS50 42/13 (3.230)
CS50Z 43 x 13 (3.310)
Transmission type
Single speed automatic
Operation
Centrifugal automatic type
ChassisCaster angle
25.00 degree
Trail
80.0 mm
Front tireSize
110/70-12 47L
Rear tireSize
120/70-12 51L 130/70-12 56L
Maximum load
CS50 161 kg
CS50Z 158 kg
Tire air pressure (measured on cold
tires)
Front
175 kPa
Rear
200 kPa
8
SPECIFICATIONS
8-1
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