engine YAMAHA YBR125 2014 Owner's Guide

MOTORCYCLE CARE AND STORAGE7-4
7
EAU43203
StorageShort-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 ( because
of the presence of ammonia)
an d areas where stron g chemi-
cals are store d.Lon g-term
Before storing your motorcycle for sev-
eral months: 1. Follow all the instructions in the “Care” section of this chapter. 2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. 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.)
e. Remove the spark plug cap from the spark plug, and then
install the spark plug and the
spark plug cap. WARNING! To
prevent damag e or injury
from sparkin g, make sure to
g roun d the spark plu g elec-
tro des while turnin g the en-
g ine over.
[EWA10952]
4. Lubricate all control cables and
the pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully char- ge it. Store it in a cool, dry place
and charge it once a month. Do
not store the battery in an exces-
sively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-28.TIPMake any necessary repairs before
storing the motorcycle.
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SPECIFICATIONS
8-1
8
Dimensions:Overall length:1985 mm (78.1 in)
Overall width:
745 mm (29.3 in)
Overall height: 1100 mm (43.3 in)
Seat height: 780 mm (30.7 in)
Wheelbase:
1290 mm (50.8 in)
Ground clearance: 160 mm (6.30 in)
Minimum turning radius: 2080 mm (81.9 in)Wei ght:Curb weight:
126 kg (278 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement: 124 cm³
Bore × stroke:
54.0 × 54.0 mm (2.13 × 2.13 in)
Compression ratio: 10.00 : 1
Starting system: Electric starter and kickstarter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade: API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change: 1.00 L (1.06 US qt, 0.88 Imp.qt)Air filter:Air filter element:Dry elementFuel:Recommended fuel:
Regular unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity:
13.0 L (3.43 US gal, 2.86 Imp.gal)
Fuel reserve amount: 3.4 L (0.90 US gal, 0.75 Imp.gal)
Fuel injection:Throttle body:ID mark: 51D1 00Spark plu g(s):Manufacturer/model:
NGK/CR6HSA
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction ratio:3.400 (68/20)
Final drive:
Chain
Secondary reduction ratio: 3.214 (45/14)
Transmission type: Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio: 1st:
2.643 (37/14)
2nd: 1.778 (32/18)
3rd: 1.316 (25/19)
4th:
1.045 (23/22)
5th: 0.875 (21/24)
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
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SPECIFICATIONS
8-3
8
Meter lighting:12 V, 1.7 W × 3
Neutral indicator light: 12 V, 2.0 W × 1
High beam indicator light:
12 V, 2.0 W × 1
Turn signal indicator light: 12 V, 2.0 W × 2
Engine trouble warning light: 12 V, 2.0 W × 1Fuse:Fuse:
15.0 A
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10-1
10
INDEXAAir filter element, cleaning .................... 6-11
Auxiliary light bulb, replacing ................ 6-32BBattery .................................................. 6-28
Brake and clutch levers, checking and lubricating ........................................... 6-24
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever .............................................. 3-5
Brake lever free play, checking............. 6-17
Brake light switches.............................. 6-19
Brake pads and shoes, checking ......... 6-19
Brake pedal............................................. 3-6
Brake pedal, checking and
lubricating ........................................... 6-25
Brake pedal free play, adjusting ........... 6-18CCables, checking and lubricating ......... 6-24
Care ........................................................ 7-1
Carrier ................................................... 3-10
Catalytic converters ................................ 3-8
Centerstand and sidestand, checking
and lubricating .................................... 6-25
Clutch lever ............................................. 3-5
Clutch lever free play, adjusting ........... 6-16DDimmer switch ........................................ 3-4
Drive chain, cleaning and lubricating .... 6-23
Drive chain slack................................... 6-21EEngine break-in....................................... 5-3
Engine idling speed, checking .............. 6-13
Engine oil .............................................. 6-10 Engine trouble warning light ................... 3-2
FFront fork, checking ............................. 6-26
Fuel ......................................................... 3-7
Fuel consumption, tips for reducing ...... 5-3
Fuel gauge .............................................. 3-4
Fuel tank cap .......................................... 3-6
Fuse, replacing ..................................... 6-29HHandlebar switches ................................ 3-4
Headlight bulb, replacing ..................... 6-30
High beam indicator light ....................... 3-2
Horn switch ............................................ 3-4IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-11
Indicator lights and warning light ........... 3-2KKickstarter .............................................. 3-9MMain switch/steering lock....................... 3-1
Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control
system.................................................. 6-3
Matte color, caution ............................... 7-1
Model label ............................................. 9-1NNeutral indicator light ............................. 3-2PPanels, removing and installing .............. 6-7
Parking ................................................... 5-4
Part locations ......................................... 2-1SSafety information .................................. 1-1 Self-diagnosis device..............................3-3
Shifting ....................................................5-2
Shift pedal ...............................................3-5
Shift pedal, checking ............................6-18
Shock absorber assemblies, adjusting ...3-9
Sidestand ..............................................3-10
Spark plug, checking ..............................6-8
Specifications .........................................8-1
Speedometer unit ...................................3-3
Starting the engine ..................................5-1
Start switch .............................................3-4
Steering, checking ................................6-27
Storage ...................................................7-4
Swingarm pivots, lubricating ................6-26
TTachometer .............................................3-3
Tail/brake light bulb, replacing..............6-31
Throttle grip and cable, checking and
lubricating ...........................................6-24
Throttle grip free play, checking ...........6-13
Tires ......................................................6-14
Tool kit ....................................................6-2
Troubleshooting ....................................6-36
Troubleshooting chart ...........................6-38
Turn signal indicator lights ......................3-2
Turn signal light bulb, replacing ............6-32
Turn signal switch ...................................3-4VValve clearance .....................................6-14
Vehicle identification number ..................9-1WWheel bearings, checking .....................6-27
Wheel (front) ..........................................6-33
Wheel (rear) ...........................................6-35
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