2018 YAMAHA XMAX 125 engine coolant

Periodic maintenance and adjustment
7-13
73. If the coolant is at or below the
minimum level mark, remove the
left floorboard mat by pulling it up.
4. Remove the coolant reservoir cov-
er.
5. Remove the coolant reservoir cap,
add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only
the coolant reservoir cap. Never
attempt to remove the radiator
cap when the engine is hot.
[EWA15162] NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will notbe protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced.
[ECA10473]
6. Install the coolant reservoir cover.
7. Place the left floorboard mat in the
original position and push it down-
ward to secure it.
EAU33032Changing the coolant
The coolant must be changed at the in-
tervals specified in the periodic mainte-
nance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove
the radiator cap when the engine is
hot.
[EWA10382]
1. Floorboard mat
1. Coolant reservoir cover
1
1
1. Coolant reservoir cap
Coolant reservoir capacity (up to
the maximum level mark):
0.18 L (0.19 US qt, 0.16 Imp.qt)
1
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Periodic maintenance and adjustment
7-34
7 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 ro-
tate the cap counterclockwise to the detent to allow any residual pres-
sure to escape. When the hissing sound has stopped, press down on the
cap while turning it counterclockwise, and then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided
that it is changed to the recommended coolant as soon as possible.
Wait until the engine
has cooled.
Check the coolant
level in the reservoir
and radiator.Add coolant.
(See TIP.)
The coolant level is
OK.
There is no leakage.
There is leakage.
The coolant level is
low.
Check the cooling
system for leakage.
Have a Yamaha
dealer check and
repair the cooling
system.
Start the engine. If the engine overheats again,
have a Yamaha dealer check and repair the cooling
system.
UBL2E0E0.book Page 34 Friday, June 23, 2017 9:30 AM

Specifications
9-1
9
Dimensions:
Overall length:
2185 mm (86.0 in)
Overall width:
775 mm (30.5 in)
Overall height:
1415/1465 mm (55.7/57.7 in)
Seat height:
795 mm (31.3 in)
Wheelbase:
1526 mm (60.1 in)
Ground clearance:
130 mm (5.12 in)
Minimum turning radius:
2.5 m (8.20 ft)
Weight:
Curb weight:
175 kg (386 lb)
Engine:
Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train:
SOHC
Number of cylinders:
Single cylinder
Displacement:
124 cm³
Bore × stroke:
52.0 × 58.6 mm (2.05 × 2.31 in)
Compression ratio:
11.2 : 1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:
Recommended brand:
YAMALUBE
SAE viscosity grades:
10W-40
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter element replacement:
1.40 L (1.48 US qt, 1.23 Imp.qt)
With oil filter removal:
1.50 L (1.59 US qt, 1.32 Imp.qt)
Final transmission oil:
Type:
YAMALUBE 10W-40 or SAE 10W-30 type
SE motor oil
Quantity:
0.21 L (0.22 US qt, 0.18 Imp.qt)
Coolant quantity:
Coolant reservoir (up to the maximum level
mark):
0.18 L (0.19 US qt, 0.16 Imp.qt)
Radiator (including all routes):
0.85 L (0.90 US qt, 0.75 Imp.qt)
Air filter:
Air filter element:
Oil-coated paper element
Fuel:
Recommended fuel:
Premium unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity:
13 L (3.4 US gal, 2.9 Imp.gal)
Fuel reserve amount:
2.4 L (0.63 US gal, 0.53 Imp.gal)
Fuel injection:
Throttle body:
ID mark:
2DS1 01
Spark plug(s):
Manufacturer/model:
NGK/CR9E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:
Clutch type:
Dry, centrifugal, shoe
Drivetrain:
Primary reduction ratio:
1.000
Final drive:
Gear
Secondary reduction ratio:
9.912 (41/14 x 44/13)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic type
Chassis:
Frame type:
Underbone
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11-1
11
Index
A
ABS ....................................................... 4-14
ABS warning light ................................... 4-1
Acceleration and deceleration ................ 6-3
Air filter and V-belt case air filter
elements ............................................. 7-14
Auxiliary DC jack ................................... 4-29
Auxiliary lights ....................................... 7-29
B
Battery .................................................. 7-26
Brake fluid, changing ............................ 7-21
Brake fluid level, checking .................... 7-20
Brake lever, front .................................. 4-13
Brake lever, rear.................................... 4-14
Brake levers, lubricating ....................... 7-23
Brake/tail light ....................................... 7-30
Braking.................................................... 6-4
C
Cables, checking and lubricating ......... 7-22
Care ........................................................ 8-1
Catalytic converters .............................. 4-20
Centerstand and sidestand, checking
and lubricating .................................... 7-24
Coolant ................................................. 7-12
D
Data recording, vehicle ......................... 10-2
Diagnostic connectors .......................... 10-2
Dimmer/Pass switch ............................. 4-12
E
Emergency mode.................................. 7-35
Engine break-in....................................... 6-5
Engine oil ................................................ 7-9
Engine serial number ............................ 10-1
Engine trouble warning light ................... 4-1
F
Final transmission oil ............................ 7-11
Front and rear brake lever free play,
checking ............................................. 7-19
Front and rear brake pads, checking.... 7-20
Front fork, checking .............................. 7-24
Front turn signal light ............................ 7-30
Fuel ....................................................... 4-18
Fuel consumption, tips for reducing ....... 6-5
Fuel tank cap ........................................ 4-17
Fuel tank overflow hose ........................ 4-19
Fuses, replacing.................................... 7-27
H
Handlebar position, adjusting ............... 4-25
Handlebar switches .............................. 4-12
Hazard switch ....................................... 4-12Headlights ............................................ 7-29
High beam indicator light ....................... 4-1
Horn switch .......................................... 4-12
I
Identification numbers .......................... 10-1
Ignition circuit cut-off system............... 4-27
Indicator lights and warning lights ......... 4-1
K
Key, handling of smart and mechanical
keys ...................................................... 3-3
L
License plate light bulb, replacing........ 7-31
M
Main switch ............................................ 3-8
Maintenance and lubrication, periodic ... 7-4
Maintenance, emission control
system.................................................. 7-3
Matte color, caution ............................... 8-1
Model label ........................................... 10-1
Multi-function display ............................. 4-3
O
Operating range of the smart key
system.................................................. 3-2
P
Panel, removing and installing ............... 7-7
Parking ................................................... 6-6
Part locations ......................................... 2-1
S
Safe-riding points ................................... 1-5
Safety information .................................. 1-1
Shock absorber assemblies,
adjusting............................................. 4-25
Sidestand ............................................. 4-26
Smart key ............................................... 3-5
Smart key battery, replacing .................. 3-6
Smart key system ................................... 3-1
Smart key system indicator light ............ 4-2
Smart key system, troubleshooting...... 7-32
Spark plug, checking ............................. 7-8
Specifications ......................................... 9-1
Speedometer .......................................... 4-2
Starting off.............................................. 6-3
Starting the engine ................................. 6-2
Steering, checking................................ 7-25
Stop/Run/Start switch .......................... 4-12
Storage ................................................... 8-4
Storage compartments ........................ 4-20
T
Tachometer ............................................ 4-3
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