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Periodic maintenance and adjustment
7-13
7
EAU20071
Coolant
The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU78580To check the coolant level
1. Place the vehicle on the center-
stand.
TIP
The coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
Make sure that the vehicle is posi-
tioned 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.
TIP
The coolant should be between the
minimum and maximum level marks.
3. 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 not
1. Coolant level check window
2. Maximum level mark
3. Minimum level mark
1
2
3
1. Floorboard mat
1. Coolant reservoir cover
1
1
UBY3E0E0.book Page 13 Friday, September 15, 2017 3:59 PM
Page 77 of 116
Periodic maintenance and adjustment
7-14
7 be 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]EAU78574
Air filter and V-belt case air fil-
ter elements
The air filter element and the sub air fil-
ter element should be replaced, and
the pre air filter element and the V-belt
case air filter element should be
cleaned at the intervals specified in the
periodic maintenance and lubrication
chart. Service the air filter elements
more frequently if you are riding in un-
usually wet or dusty areas. The air filter
check hose must be frequently
checked and cleaned if necessary.
Cleaning the air filter check hose
1. Check the hose on the rear side of
the air filter case for accumulated
dirt or water.
2. If dirt or water is visible, remove
the hose from the clamp, clean it,
and then install it.
TIP
If dirt or water was found in the check
hose, be sure to check the air filter ele-
ment for excessive dirt or damage and
replace it if necessary.
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
1. Air filter check hose
1
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Page 78 of 116
Periodic maintenance and adjustment
7-15
7Replacing the air filter element and
sub air filter element and cleaning
the pre air filter element
1. Place the vehicle on the center-
stand.
2. Remove the rubber plugs.
3. Remove the air filter case cover by
removing the screws.
4. Pull the air filter element and sub
air filter element out.5. Insert a new sub air filter element
into the air filter case cover.
6. Insert a new air filter element into
the air filter case. NOTICE: Make
sure that the air filter element is
properly seated in the air filter
case. The engine should never
be operated without the air filter
element installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
[ECA10482]
7. Pull the pre air filter element out,
and then blow out the dirt with
compressed air as shown.
1. Rubber plug
1. Air filter case cover
2. Screw
1
1
2
2
2 2
1. Air filter element
1. Sub air filter element
2. Air filter case cover
1
1
2
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Periodic maintenance and adjustment
7-16
7
8. Check the pre air filter element for
damage, and replace it if neces-
sary.
9. Insert the pre air filter element into
the air filter case cover.
10. Install the air filter case cover by
installing the screws.
TIP
The long screw should be installed as
shown.
11. Install the rubber plugs.
Cleaning the V-belt case air filter el-
ement
1. Place the vehicle on the center-
stand.
2. Remove the air filter case cover.
(See the previous section.)
3. Remove the V-belt case cover
screws.
4. Remove the air filter case bolts.
1. Pre air filter element
2. Air filter case cover
1
2
1. Long screw
1. Screw
1
1
1
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Page 80 of 116
Periodic maintenance and adjustment
7-17
75. Lift up the air filter case slightly, re-
move the rear wheel sensor lead
from the holder, and then remove
the V-belt case cover.
6. Remove the V-belt case air filter
cover by removing the bolts.7. Remove the air filter element, and
then blow out the dirt with com-
pressed air from the clean side as
shown.
8. Check the V-belt case air filter ele-
ment for damage and replace it if
necessary.
9. Insert the element into the V-belt
case.
10. Install the V-belt case air filter cov-
er by installing the bolts.
11. Install the rear wheel sensor lead
into the holder at the white tape on
the lead as shown.
1. Bolt
1. Rear wheel sensor lead
2. Lead holder
1. V-belt case air filter cover
2. Bolt
1
1
22
1
2
2
1. V-belt case air filter element
1. Clean side
1
1
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Page 81 of 116
Periodic maintenance and adjustment
7-18
7 12. Install the air filter case bolts, and
then tighten the bolts to the spec-
ified torque.
13. Install the V-belt case cover by in-
stalling the screws.
14. Install the air filter case cover by
installing the screws.
EAU21386
Checking the throttle grip free
play
Measure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
1. Rear wheel sensor lead
2. White tape
3. Lead holder
Tightening torque:
Bolt:
10 N·m (1.0 kgf·m, 7.4 lb·ft)
1
33
22
3
2
2
3
1. Throttle grip free play
Throttle grip free play:
3.0–5.0 mm (0.12–0.20 in)
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Periodic maintenance and adjustment
7-19
7
EAU21403
Valve clearance
The valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine
noise, and eventually engine damage.
To prevent this from occurring, have
your Yamaha dealer check and adjust
the valve clearance at regular intervals.
TIP
This service must be performed when
the engine is cold.
EAU69760
Tires
Tires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
WARNING
EWA10504
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
The tire air pressure must be
adjusted in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
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Page 83 of 116
Periodic maintenance and adjustment
7-20
7
WARNING
EWA10512
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
cause an accident.
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.
TIP
The tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
WARNING
EWA10472
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.
The replacement of all wheel
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience to do so.
Ride at moderate speeds after
changing a tire since the tire
surface must first be “broken
in” for it to develop its optimal
characteristics.
Tire information
This model is equipped with tubeless
tires and rubber tire air valves.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
Tire air pressure (measured on cold
tires):
1 person:
Front:
200 kPa (2.00 kgf/cm², 29 psi)
Rear:
225 kPa (2.25 kgf/cm², 33 psi)
2 persons:
Front:
200 kPa (2.00 kgf/cm², 29 psi)
Rear:
225 kPa (2.25 kgf/cm², 33 psi)
Maximum load*:
161 kg (355 lb)
* Total weight of rider, passenger, car-
go and accessories
1. Tire sidewall
2. Tire tread depth
12
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
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