2008 YAMAHA JOG50R recommended oil

EAU13452
2-stroke engine oil
1. Oil tank cap
Make sure that there is sufficient 2-
stroke engine oil in the oil tank. Add
the recommended 2-stroke engine oil
as necessary.
NOTE:
Make sure that the 2-stroke engine oil
tank cap is properly installed.
EAUM1141
2-stroke engine oil tank
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.
NOTE:
Make sure that the 2-stroke engine oil
tank cap is properly installed before
riding the vehicle.
Recommended oil:
Yamalube 2 or equivalent 2-stroke
engine oil (JASO grade “FC”, or
ISO grades “EG-C” or “EG-D”)
Oil quantity:
1.4 L (1.48 US qt) (1.23 Imp.qt)
INSTRUMENT AND CONTROL FUNCTIONS
3-9
3
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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. 3-9
• Check vehicle for oil leakage.
Final transmission oil• Check vehicle for oil leakage. 6-7
• Check coolant level in reservoir.
Coolant (for 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.
6-13, 6-14
• Check lever free play.
• Adjust if necessary.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-10, 6-16
• If necessary, have Yamaha dealer adjust cable free play and lubricate
cable and grip housing.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-11, 6-12
• Check air pressure.
• Correct if necessary.
Brake levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-16
5RW-F8199-E4.QXD 19/11/07 08:01 Página 30

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.
EAU20061
Final transmission oil
The final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the
scooter. In addition, the final trans-
mission oil must be changed as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Start the engine, warm up the
final transmission oil by riding the
scooter for several minutes, and
then stop the engine.
2. Place the scooter on the centers-
tand.
3. Place an oil pan under the final
transmission case to collect the
used oil.
4. Remove the oil filler cap and
drain bolt to drain the oil from the
final transmission case.
1. Final transmission oil filler cap
2. Final transmission oil drain bolt
5. Install the final transmission oil
drain bolt, and then tighten it to
the specified torque.
6. Add the specified amount of the
recommended final transmission
oil, and then install and tighten
the oil filler cap.
Tightening torque:
Final transmission oil drain bolt:
18 Nm (1.8 m•kgf, 13.0 ft•lbf)
Tightening torque:
Spark plug:
20 Nm (2.0 m•kgf, 14.5 ft•lbf)
PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
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EWA11310
s s
WARNING
●Make sure that no foreign
material enters the final trans-
mission case.
●Make sure that no oil gets on
the tire or wheel.
7. Check the final transmission case
for oil leakage. If oil is leaking,
check for the cause.
EAUS1200
Coolant (only for liquid-
cooled models)
The coolant level should be checked
before each ride. In addition, the coo-
lant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAUM2101
To check the coolant level
1. Place the vehicle on a level surfa-
ce and hold it in an upright posi-
tion.
NOTE:
●The coolant level must be chec-
ked on a cold engine since the
level varies with engine tempera-
ture.
●Make sure that the vehicle is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
a false reading.
2. Check the coolant level through
the check window.
NOTE:
The coolant should be between the
minimum and maximum level marks.
1. Coolant level window
2. Maximum level mark
3. Minimum level mark
3. If the coolant is at or below the
minimum level mark, remove the
cowling A. (See page 6-5.)
4. Open the reservoir cap, and then
add coolant to the maximum
level mark.
Coolant reservoir capacity:
0.25 L (0.26 US qt) (0.22 Imp.qt)
Recommended final transmission
oil:
See page 8-1.
Oil quantity:
0.11 L (0.12 US qt) (0.10 Imp.qt)
PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6
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EAU32344
Checking the brake fluid
level
1. Minimum level mark
Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low bra-
ke fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.
Observe these precautions:
●When checking the fluid level,
make sure that the top of themaster cylinder is level by turning
the handlebars.
●Use only the recommended qua-
lity brake fluid, otherwise the rub-
ber seals may deteriorate, cau-
sing leakage and poor braking
performance.
●Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performan-
ce.
●Be careful that water does not
enter the master cylinder when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
●Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
●As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
Recommended brake fluid:
DOT 4
PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
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EAU23191
Checking and lubricating the
centerstand
1. Centerstand
The operation of the centerstand
should be checked before each ride,
and the pivots and metal-to-metal
contact surfaces should be lubricated
if necessary.
EWA11300
s s
WARNING
If the centerstand does not move
up and down smoothly, have a
Yamaha dealer check or repair it.
EAU23271
Checking the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the perio-
dic maintenance and lubrication
chart.
To check the condition
EWA10750
s s
WARNING
Securely support the vehicle so
that there is no danger of it falling
over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level surfa-
ce and hold it in an upright posi-
tion.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and
rebounds smoothly.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
Recommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease
(all-purpose grease)
PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
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Dimensions:Overall length:
1740 mm (68.5 in)
Overall width:
675 mm (26.6 in)
Overall height:
1065 mm (41.9 in)
Seat height:
770 mm (30.3 in)
Wheelbase:
1210 mm (47.6 in)
Ground clearance:
132 mm (5.19 in)
Weight:With oil and fuel:
CS50/CS50M: 81.0 kg (178.6 lb)
CS50Z: 84.0 kg (185.2 lb)
Engine:Engine type:
CS50/CS50M: Air cooled 2-stroke
CS50Z: Liquid cooled 2-stroke
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
49.0 cm
3(2.99 cu.in)
Bore x stroke:
40.0 x 39.2 mm (1.57 x 1.54 in)
Compression ratio:
CS50: 11.60:1
CS50M: 10,10 :1
CS50Z: 11.40 :1
Starting system:
Electric starter and kickstarterLubrication system:
Separate lubrication (Yamaha autolube)
Engine oil:Type:
YAMALUBE 2-cycle oil or 2-stroke engine
oil (JASO FC grade) or (ISO EG-C or EG-
D grade)
Engine oil quantity:
Quantity:
1.4 L (1.48 US qt) (1.23 Imp.qt)
Final transmission oil:Type:
SAE10W30 type SE motor oil
Quantity:
0.11 L (0.12 US qt) (0.10 Imp.qt)
CS50Z: Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
Radiator capacity (including all routes):
0.91 L (0.96 US qt) (0.80 Imp.qt)
Air filter:Air filter element:
Wet element
Fuel: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)
Carburetor:Manufacturer:
GURTNERType x quantity:
PY 12 x 1
Spark plug(s):Manufacturer/model:
CS50-CS50Z: NGK/BR8HS
CS50M: NGK/BPR4HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Clutch:Clutch type:
Dry, centrifugal automatic
Final transmission oil:Primary reduction system:
Helical gear
Primary reduction ratio:
52 x 13 (4.000)
Secondary reduction system:
Spur gear
Secondary reduction ratio:
CS50: 42 x 13 (3.231)
CS50M: 45 x 12(3.750)
CS50Z: 43 x 13 (3.308)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic type
Chassis:Frame type:
Steel tube underbone
Caster angle:
25.00 °
Trail:
80.0 mm (3.15 in)
SPECIFICATIONS
8-1
8
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Front tire:Type:Tubeless
Size: 110/70-12 47L
Manufacturer/model: CHENG SHIN TIRE / C922
Rear tire:Type:Tubeless
Size: 120/70-12 51L
Manufacturer/model: CHENG SHIN TIRE / C922
Loading:Maximum load:CS50/CS50M: 169 kg (372 lb)
CS50Z: 166 kg (366 lb)
(Total weight of rider, passenger, cargo and
accessories)
Tire air pressure (measured on cold
tires):
Loading condition: 0–90 kg (0–198 lb)
Front: 175 kPa (25 psi) (1.75 kgf/cm
2)
Rear: 200 kPa (28 psi) (2.00 kgf/cm
2)
Loading condition:
CS50/CS50M 90~169 kg (198~373 lb)
CS50Z 90~166 kg (198~366 lb): Front:175 kPa (25 psi) (1.75 kgf/cm
2) Rear:
225 kPa (32 psi) (2.25 kgf/cm
2)
Front wheel:Wheel type: Cast wheel
Rim size: 12xMT2.75
Rear wheel:Wheel type:Cast wheel
Rim size: 12xMT3.00
Front brake:Type:Single disc brake
Operation: Right hand operation
Recommended fluid: DOT 4
Rear brake:Type:Drum brake
Operation: Left hand operation
Front suspension:Type:Telescopic fork
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 70.0 mm (2.76 in)
Rear suspension:Type:Unit swing Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 60.0 mm (2.36 in)
Electrical system:Ignition system:DC. CDI
Charging system: AC magneto
Battery:Model:GT4L-BS
Voltage, capacity: 12 V, 4.0 Ah
Headlight:
Bulb type:Incandescence
Bulb voltage, wattage x quantity:Headlight:12 V, 35.0 W/35.0 W x 1
Tail/brake light: 12 V, 21.0 W/5.0 W x 1
Front turn signal light: 12 V, 10.0 W x 2
Rear turn signal light: 12 V, 10.0 W x 2
Meter lighting: 12 V, 1.2 W x 2
High beam indicator light: 12 V, 1.2 W x 1
Oil level warning light: LED x 1
Turn signal indicator light: 12 V, 1.2 W x 2
SPECIFICATIONS
8-2
8
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