engine oil YAMAHA PW50 2015 Owners Manual

TABLE OF CONTENTS
LOCATION OF IMPORTANT
LABELS..............................................1-1
SAFETY INFORMATION ...................2-1
DESCRIPTION ...................................3-1
Left view ..........................................3-1
Right view ........................................3-2
Controls and instruments ................3-3
INSTRUMENT AND CONTROL
FUNCTIONS .......................................4-1
Handlebar switch ............................4-1
Speed limiter and power reduction plate .............................................4-1
Front brake lever .............................4-2
Rear brake lever ..............................4-3
Fuel tank cap ...................................4-3
Fuel ..................................................4-3
Fuel tank breather hose...................4-5
2-stroke engine oil ...........................4-6
Fuel cock .........................................4-6
Starter (choke) lever .......................4-7
Kickstarter .......................................4-7
Seat .................................................4-7
Cable lock (for Europe) ....................4-8 FOR YOUR SAFETY –
PRE-OPERATION CHECKS
............. 5-1
OPERATION AND IMPORTANT
RIDING POINTS ................................ 6-1
Starting and warming up a cold engine .......................................... 6-1
Starting a warm engine................... 6-1
Starting off ...................................... 6-2
Acceleration and deceleration ........ 6-2
Braking............................................ 6-2
Engine break-in............................... 6-3
Parking ............................................ 6-4
PERIODIC MAINTENANCE AND
ADJUSTMENT .................................. 7-1
Owner’s tool kit............................... 7-2
Periodic maintenance chart for the
emission control system ............. 7-3
General maintenance and
lubrication chart .......................... 7-4
Checking the spark plug................. 7-6
Removing the power reduction plate............................................. 7-7
Transmission oil .............................. 7-8
Middle and final gear cases ............ 7-9
Cleaning the air filter element ......... 7-9
Cleaning the spark arrester .......... 7-10
Adjusting the carburetor ............... 7-11
Adjusting the engine idling speed......................................... 7-11 Checking the throttle grip free
play ............................................ 7-12
Tires .............................................. 7-12
Panel wheels ................................. 7-14
Adjusting the front and rear brake lever free play ............................ 7-14
Checking the front and rear brake shoes ......................................... 7-15
Checking and lubricating the cables ........................................ 7-16
Checking and lubricating the
throttle grip and cable ............... 7-16
Adjusting the Autolube pump ....... 7-16
Lubricating the front and rear brake levers ............................... 7-17
Checking and lubricating the centerstand ................................ 7-17
Checking the front fork ................. 7-17
Checking the steering ................... 7-18
Checking the wheel bearings ........ 7-18
Front wheel ................................... 7-19
Rear wheel .................................... 7-20
Troubleshooting ............................ 7-23
Troubleshooting chart ................... 7-24
MOTORCYCLE CARE AND
STORAGE .......................................... 8-1
Matte color caution ......................... 8-1
Care................................................. 8-1
Storage............................................ 8-3
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DESCRIPTION
3-2
3
EAU10421
Right view
1
2
3
4
5
6
1. Spark arrester (page 7-10)
2. Seat (page 4-7)
3. Transmission oil filler cap (page 7-8)
4. Fuel tank cap (page 4-3)
5. 2-stroke engine oil tank cap (page 4-6)
6. Transmission oil drain bolt (page 7-8)U2SA81E0.book Page 2 Monday, June 2, 2014 2:00 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-6
4
EAU13454
2-stroke engine oilMake sure that there is sufficient 2-
stroke engine oil in the oil tank. Add the
recommended 2-stroke engine oil as
necessary.NOTICE
ECA16671
Make sure that the 2-stroke en gine
oil tank cap is properly installe d.
EAU40702
Fuel cockThe fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has two positions:
S (stop)
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not run-
ning. O (on)
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
1. 2-stroke engine oil tank cap
2. Minimum level markRecommen
ded oil:
See page 9-1.
Oil quantity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
2 1
1. Arrow mark pointing to “S” (stop)
1
1. Arrow mark pointing to “O” (on)
1
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OPERATION AND IMPORTANT RIDING POINTS
6-3
6Front
Rear
EAU42031
En
gine break-inThere is never a more important period
in the life of your engine than the first 5
hours of riding. It is also important to
accustom the rider to the motorcycle
during this time. Please read the fol-
lowing information carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
5 hours of operation. The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided. However, momen-
tary full-throttle operation under load
(i.e., two to three seconds maximum)
does not harm the engine. Each full-
throttle acceleration should be fol-
lowed with a substantial rest period for
the engine. To allow the engine to cool
down from the temporary buildup of
heat, cruise at a lower engine speed.
After the first 5 hours of operation,
thoroughly check the motorcycle for
loose parts, oil leakage and any other
problems. Be sure to inspect and make adjustments thoroughly, especially ca-
bles. In addition, check all fittings and
fasteners for looseness, and tighten if
necessary.
NOTICE
ECA10271
If any en
gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha dealer
check the vehicle.
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PERIODIC MAINTENANCE AND ADJUSTMENT
7-8
7
EAU40894
Transmission oilThe transmission oil must be checked
for oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the motorcycle. In
addition, the transmission oil must be
changed at the intervals specified in
the periodic maintenance and lubrica-
tion chart.1. Place the motorcycle on the cen- terstand.
2. Place an oil pan under the trans- mission to collect the used oil.
3. Remove the transmission oil filler cap, the transmission oil drain bolt
and its gasket to drain the oil from
the transmission. 4. Install the transmission oil drain
bolt and its new gasket, and then
tighten the bolt to the specified
torque.
5. Refill with the specified amount of the recommended transmission
oil, and then install and tighten the
oil filler cap.
NOTICE
ECA10453
In or der to prevent clutch slip-
pa ge (since the transmission oil
also lu bricates the clutch), do
not mix any chemical additives.
Do not use oils with a diesel
specification of “CD” or oils of a
hi gher quality than specifie d. In
a dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn mate-
rial enters the transmission.6. Start the engine, and then let it idle for several minutes while checking
the transmission for oil leakage. If
oil is leaking, immediately turn the
engine off and check for the cau-
se.
1. Transmission oil filler cap
1
1. Transmission oil drain bolt
2. Gasket
Tightenin g torque:
Transmission oil drain bolt: 14 Nm (1.4 m·kgf, 10 ft·lbf)
Recommen ded transmission oil:
See page 9-1.
Oil chan ge quantity:
0.30 L (0.32 US qt, 0.26 Imp.qt)
1
2
U2SA81E0.book Page 8 Monday, June 2, 2014 2:00 PM

MOTORCYCLE CARE AND STORAGE
8-1
8
EAU37834
Matte color cautionNOTICE
ECA15193
Some models are equipped with
matte colore d finishe d parts. Be
sure to consult a Yamaha d ealer for
a d vice on what prod ucts to use be-
fore cleanin g the vehicle. Usin g a
b rush, harsh chemical prod ucts or
cleanin g compoun ds when cleanin g
these parts will scratch or damag e
their surface. Wax also shoul d not
b e applied to any matte colore d fin-
ishe d parts.
EAU40636
CareWhile the open design of a motorcycle
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 un-
noticed on a car, however, it detracts
from the overall appearance of a mo-
torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.
Before cleanin g
1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and cov- ers as well as all electrical cou-
plers and connectors, including
the spark plug cap, are tightly in-
stalled.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod- ucts onto seals, gaskets and
wheel axles. Always rinse the dirt
and degreaser off with water.
Cleanin g
NOTICE
ECA17111
Avoi d usin g stron g aci dic wheel
cleaners, especially on spoke d
wheels. If such pro ducts are
use d on har d-to-remove dirt, do
not leave the cleaner on the af-
fected area any lon ger than in-
structe d. Also, thorou ghly rinse
the area off with water, imme di-
ately dry it, an d then apply a cor-
rosion protection spray.
 Improper cleanin g can d amage
plastic parts (such as cowlin gs,
panels, etc.) an d the mufflers.
Use only a soft, clean cloth or
spon ge with water to clean
plastic. However, if the plastic
parts cannot be thorou ghly
cleaned with water, dilute d mil d
d eter gent with water may b e
use d. Be sure to rinse off any
U2SA81E0.book Page 1 Monday, June 2, 2014 2:00 PM

MOTORCYCLE CARE AND STORAGE8-2
8
d
eter gent resi due usin g plenty
of water, as it is harmful to plas-
tic parts.
 Do not use any harsh chemical
prod ucts on plastic parts. Be
sure to avoi d usin g cloths or
spon ges which have b een in
contact with stron g or a brasive
cleanin g prod ucts, solvent or
thinner, fuel ( gasoline), rust re-
movers or inhi bitors, brake flui d,
antifreeze or electrolyte.
 Do not use hi gh-pressure wash-
ers or steam-jet cleaners since
they cause water seepag e and
d eterioration in the followin g ar-
eas: seals (of wheel an d swin g-
arm bearin gs, fork an d b rakes),
electric components (couplers,
connectors, an d switches),
b reather hoses an d vents.
After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.
After riding in the rain or near the sea
Since sea salt is extremely corrosive,
carry out the following steps after each
ride in the rain or near the sea.
1. Clean the motorcycle with cold water and a mild detergent, after
the engine has cooled down.
NOTICE: Do not use warm wa-
ter since it increases the corro-
sive action of the salt.
[ECA10792]
2. Apply a corrosion protection spray on all metal, including chrome-
and nickel-plated, surfaces to pre-
vent corrosion.
After cleanin g
1. Dry the motorcycle with a chamois or an absorbing cloth.
2. Use a chrome polish to shine chrome, aluminum and stainless-
steel parts. 3. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
4. Use spray oil as a universal clean- er to remove any remaining dirt.
5. Touch up minor paint damage caused by stones, etc.
6. Wax all painted surfaces.
7. Let the motorcycle dry completely before storing or covering it.
WARNING
EWA14502
Contaminants on the brakes or tires
can cause loss of control.  Make sure that there is no oil or
wax on the tires.
 If necessary, wash the tires with
warm water an d a mil d d eter-
g ent. Before ri din g at hi gher
speed s, test the motorcycle’s
b rakin g performance an d cor-
nering b ehavior.
U2SA81E0.book Page 2 Monday, June 2, 2014 2:00 PM

MOTORCYCLE CARE AND STORAGE
8-3
8
NOTICE
ECA10801
Apply spray oil an d wax spar-
in gly an d make sure to wipe off
any excess.
 Never apply oil or wax to any
rubber an d plastic parts, but
treat them with a suitab le care
prod uct.
 Avoi d usin g a brasive polishin g
compoun ds as they will wear
away the paint.TIPConsult a Yamaha dealer for advice on
what products to use.
EAU40646
Stora geShort-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover. Be
sure the engine and the exhaust sys-
tem are cool before covering the mo-
torcycle.NOTICE
ECA10811
 Storin g the motorcycle in a
poorly ventilate d room or cover-
in g it with a tarp, while it is still
wet, will allow water an d humi d-
ity to seep in an d cause rust.
 To prevent corrosion, avoi d
d amp cellars, sta bles (b ecause
of the presence of ammonia)
an d areas where stron g chemi-
cals are stored .Long-term
Before storing your motorcycle for sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter. 2. For motorcycles equipped with a
fuel cock that has an “S” (stop)
position: Turn the fuel cock lever
to “S”.
3. Drain the carburetor float chamber by loosening the drain bolt; this
will prevent fuel deposits from
building up. Pour the drained fuel
into the fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
5. 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 spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
U2SA81E0.book Page 3 Monday, June 2, 2014 2:00 PM

SPECIFICATIONS
9-1
9
Dimensions:Overall length:1245 mm (49.0 in)
Overall width:
575 mm (22.6 in)
Overall height: 715 mm (28.1 in)
Seat height: 485 mm (19.1 in)
Wheelbase:
855 mm (33.7 in)
Ground clearance: 105 mm (4.13 in)
Minimum turning radius: 1300 mm (51.2 in)Wei ght:Curb weight:
39 kg (86 lb)
Technical permissible mass (Maximum load +
Curb weight): 64 kg (141 lb)Noise an d vi bration level:Noise level (77/311/EEC):
PW50 75.1 dB(A)@2750 r/min
(AUT)(BEL)(CHE)(CYP)(CZE)(DEU)(DNK)(E
SP)(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(N
OR)(POL)(PRT)(SVK)(SVN)(SWE)(TUR)
Vibration on seat (EN1032, ISO5008): PW50 Will not exceed 0.5 m/s²
(AUT)(BEL)(CHE)(CYP)(CZE)(DEU)(DNK)(E
SP)(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(N
OR)(POL)(PRT)(SVK)(SVN)(SWE)(TUR) Vibration on handlebar (EN1032, ISO5008):
PW50 Will not exceed 2.5 m/s²
(AUT)(BEL)(CHE)(CYP)(CZE)(DEU)(DNK)(E
SP)(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(N
OR)(POL)(PRT)(SVK)(SVN)(SWE)(TUR)
Engine:Engine type:
Air cooled 2-stroke
Cylinder arrangement: Single cylinder
Displacement: 49 cm³
Bore × stroke:
40.0 × 39.2 mm (1.57 × 1.54 in)
Compression ratio: 6.0 : 1
Starting system: Kickstarter
Lubrication 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: Engine oil tank capacity:
0.30 L (0.32 US qt, 0.26 Imp.qt)Transmission oil:Type:YAMALUBE 4 (10W-40) or SAE 10W-40
Oil change quantity:
0.30 L (0.32 US qt, 0.26 Imp.qt)
Air filter:Air filter element:Wet elementFuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity: 2.0 L (0.53 US gal, 0.44 Imp.gal)Car buretor:Type × quantity:
VM12SC x 1Spark plu g(s):Manufacturer/model:
PW50 NGK/BP4HS (ZAF)
PW50 NGK/BPR4HS
(AUT)(BEL)(CHE)(CYP)(CZE)(DEU)(DNK)(E
SP)(FIN)(FRA)(GBR)(GRC)(IRL)(ITA)(NLD)(N
OR)(POL)(PRT)(SVK)(SVN)(SWE)(TUR)
PW50F NGK/BPR4HS
PW50F1 NGK/BPR4HS
Manufacturer/model: PW50 DENSO/W14FP-L (ZAF)
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:Wet, centrifugal automaticTransmission:Primary reduction ratio:
1.909 (63/33)
Final drive: Shaft
Secondary reduction ratio: 6.218 (19/15 x 54/11)
U2SA81E0.book Page 1 Monday, June 2, 2014 2:00 PM

11-1
11
INDEX
AAcceleration and deceleration ................ 6-2
Air filter element, cleaning ...................... 7-9
Autolube pump, adjusting .................... 7-16BBrake lever, front .................................... 4-2
Brake lever, rear ..................................... 4-3
Brake levers, lubricating ....................... 7-17
Brake shoes, checking ......................... 7-15
Braking ................................................... 6-2CCable lock (for Europe) ........................... 4-8
Cables, checking and lubricating ......... 7-16
Carburetor, adjusting............................ 7-11
Care ........................................................ 8-1
Centerstand, checking and lubricating........................................... 7-17EEngine break-in ...................................... 6-3
Engine idling speed .............................. 7-11
Engine oil ................................................ 4-6
Engine serial number ............................ 10-1
Engine, starting a warm.......................... 6-1
Engine stop switch ................................. 4-1FFront and rear brake lever free play, adjusting ............................................. 7-14
Front fork, checking ............................. 7-17
Fuel ......................................................... 4-3
Fuel cock ................................................ 4-6
Fuel tank breather hose.......................... 4-5
Fuel tank cap .......................................... 4-3HHandlebar switch.................................... 4-1
IIdentification numbers ......................... 10-1KKickstarter .............................................. 4-7LLabels, location ...................................... 1-1MMaintenance and lubrication, periodic... 7-4
Maintenance, emission control system ................................................. 7-3
Matte color, caution ............................... 8-1
Middle and final gear cases ................... 7-9
Model label........................................... 10-1PParking ................................................... 6-4
Part locations ......................................... 3-1
Power reduction plate, removing ........... 7-7SSafety information .................................. 2-1
Seat ........................................................ 4-7
Spark arrester, cleaning ....................... 7-10
Spark plug, checking ............................. 7-6
Specifications......................................... 9-1
Speed limiter and power reduction plate ..................................................... 4-1
Starter (choke) lever ............................... 4-7
Starting and warming up a cold engine .................................................. 6-1
Starting off ............................................. 6-2
Steering, checking ............................... 7-18
Storage................................................... 8-3TThrottle grip and cable, checking and lubricating .......................................... 7-16 Throttle grip free play, checking ........... 7-12
Tires ...................................................... 7-12
Tool kit .................................................... 7-2
Transmission oil ...................................... 7-8
Troubleshooting .................................... 7-23
Troubleshooting chart........................... 7-24
VVehicle Emission Control Information
label (For Canada) .............................. 10-2
Vehicle identification number ............... 10-1WWheel bearings, checking .................... 7-18
Wheel (front).......................................... 7-19
Wheel (rear)........................................... 7-20
Wheels .................................................. 7-14
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