2016 YAMAHA XENTER 150 coolant

Periodic maintenance and adjustment6-34
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Engine overheating
WARNING
EWAT1041

Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.

Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the capwhile turning it counterclockwise, and then remove the cap.
TIPIf coolant is not available, tap water can be temporarily
used instead, provided that it is changed to the recommended coolantas soon as possible.Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
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Specifications
EAU72940
Dimensions:Overall length: 1990 mm (78.3 in)
Overall width: 690 mm (27.2 in)
Overall height: 1135 mm (44.7 in)
Seat height:
785 mm (30.9 in)
Wheelbase: 1385 mm (54.5 in)
Ground clearance: 140 mm (5.51 in)Weight:Curb weight:142 kg (313 lb)Engine:Combustion cycle:
4-stroke
Cooling system: Liquid cooled
Valve train: SOHC
Number of cylinders:
Single cylinder
Displacement: 155 cm
3
Bore  stroke:
58.0  58.7 mm (2.28  2.31 in)
Compression ratio:
11.0 : 1
Starting system: Electric starter Lubrication system:
Wet sump
Engine oil:Recommended brand:YAMALUBE
Type: SAE 10W-40
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA or MB
Engine oil quantity:
Periodic oil change:1.10 L (1.16 US qt, 0.97 Imp.qt)Final transmission oil:Type:SAE 10W-30 type SE motor oil
Quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)
Coolant reservoir (up to the maximum level
mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes):
0.56 L (0.59 US qt, 0.49 Imp.qt)Air filter:Air filter element:Oil-coated paper element
V-belt filter element:
Dry elementFuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity:
8.0 L (2.1 US gal, 1.8 Imp.gal)
Fuel injection:Throttle body: ID mark:52S1 01Spark plug(s):Manufacturer/model: NGK / CPR9EA-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:Dry, centrifugal automaticTransmission:Primary reduction ratio:
1.000
Final drive: Gear
Secondary reduction ratio: 10.320 (46 / 13 )×(35 / 12)
Transmission type:
V-belt automatic
Gear ratio:Chassis:Frame type: Underbone
Caster angle: 23.8 
Trail:
84 mm (3.3 in)Front tire:Type:Tubeless
Size:
100 / 80 - 16M/C 50P
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Specifications
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Manufacturer/model: DURO / DM1157FRear tire:Type:Tubeless
Size: 120 / 80 - 16M/C 60P
Manufacturer/model:
DURO / DM1157Loading:Maximum load:179 kg (395 lb)
* (Total weight of rider, passenger, cargo
and accessories)Tire air pressure (measured on cold
tires):Loading condition:90 kg (198 lb)
Front: 175 kPa (1.75 kgf/cm
2, 25 psi)
Rear: 200 kPa (2.00 kgf/cm2, 29 psi)
Loading condition:
90 kg - maximum load
Front: 175 kPa (1.75 kgf/cm2, 25 psi)
Rear: 225 kPa (2.25 kgf/cm2, 33 psi)
Front wheel:Wheel type:Cast wheel
Rim size: J 16M/C × MT2.50
Rear wheel:Wheel type:Cast wheel
Rim size: J 16M/C × MT2.75Front brake:Type:
Hydraulic single disc brake
Specified brake fluid: DOT 4Rear brake:Type:
Mechanical leading trailing drum brakeFront suspension:Type:Telescopic fork
Spring:
Coil spring
Shock absorber: Hydraulic damper
Wheel travel: 100 mm (3.9 in)Rear suspension:Type:Unit swing
Spring: Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel: 92 mm (3.6 in)Electrical system:System voltage:
12 V Ignition system:
TCI
Charging system:
AC magneto
Battery:Model:GT7B-4
Voltage, capacity:
10 V, 6.5 Ah (10 HR)Headlight:Bulb type:Halogen bulbBulb voltage, wattage  quantity:Headlight:
12 V, 55.0 W  2
Brake/tail light: LED
Front turn signal light:
12 V, 10.0 W  2
Rear turn signal light: 12 V, 10.0 W  2
Auxiliary light: 12 V, 5.0 W  2
License plate light:
12 V, 5.0 W  1
Meter lighting: LED
High beam indicator light: LED
Turn signal indicator light:
LED
Coolant temperature warning light: LED
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Index
AAcceleration and deceleration ................... 5-2
Air filter and V-belt case air filter
elements ................................................ 6-16
Auxiliary light bulb, replacing ................... 6-29BBattery ..................................................... 6-26
Brake fluid, changing ............................... 6-23
Brake fluid level, checking ....................... 6-22
Brake lever, front ....................................... 3-7
Brake lever, rear ........................................ 3-8
Brake levers, lubricating .......................... 6-24
Brake pads and shoes, checking............. 6-21
Braking ...................................................... 5-3CCables, checking and lubricating ............. 6-23
Care ........................................................... 7-1
Carrier...................................................... 3-14
Catalytic converter ................................... 3-10
Centerstand, checking and lubricating .... 6-24
Coolant .................................................... 6-14
Coolant temperature warning light............. 3-2
Cowling and panels, removing and installing .................................................. 6-8DDimmer switch ........................................... 3-7EEngine break-in ......................................... 5-3
Engine idling speed, checking ................. 6-17
Engine oil ................................................. 6-11
Engine serial number................................. 9-1
Engine trouble warning light ...................... 3-3FFinal transmission oil ............................... 6-13 Front brake lever free play, checking ...... 6-20
Front fork, checking................................. 6-25
Fuel ........................................................... 3-9
Fuel consumption, tips for reducing .......... 5-3
Fuel tank cap............................................. 3-8
Fuses, replacing ...................................... 6-28
HHandlebar switches ................................... 3-7
Headlight bulb, replacing......................... 6-28
High beam indicator light........................... 3-2
Horn switch ............................................... 3-7IIdentification numbers ............................... 9-1
Indicator lights and warning lights ............. 3-2LLicense plate light ................................... 6-32
Luggage holder ....................................... 3-14MMain switch/steering lock .......................... 3-1
Maintenance and lubricatio
n, periodic....... 6-5
Maintenance, emission control system ..... 6-4
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function display................................. 3-3PParking ...................................................... 5-4
Part locations ............................................ 2-1
Passenger footrest .................................. 3-11RRear brake lever free play, adjusting ...... 6-20SSafe-riding points ...................................... 1-5
Safety information ..................................... 1-1
Seat ......................................................... 3-11 Shock absorber assembly .......................3-13
Spark plug, checking ...............................6-10
Specifications.............................................8-1
Starting off .................................................5-2
Starting the engine.....................................5-1
Start switch ................................................3-7
Steering, checking ...................................6-26
Storage ......................................................7-4
Storage compartments ............................3-12
TTail/brake light ......................................... 6-30
Throttle grip and cable, checking and
lubricating ..............................................6-24
Throttle grip free play, checking...............6-17
Tires .........................................................6-18
Tool kit .......................................................6-2
Troubleshooting .......................................6-32
Troubleshooting charts ............................6-33
Turn signal indicator lights .........................3-2
Turn signal light bulb (front), replacing ....6-30
Turn signal light bulb (r ear), replacing .....6-31
Turn signal switch ......................................3-7VValve clearance .......................................6-18
Vehicle identificat ion number .....................9-1WWheel bearings, checking........................6-26
Wheels .....................................................6-20
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