2015 YAMAHA XT660Z warning

PERIODIC MAINTENANCE AND ADJUSTMENT
6-29
6
EAU23292
Checking the wheel bearingsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
EAUS1913
BatteryTo access the battery (XTZ660Z):
The battery is located under the seat.
(See page 3-16.)
Remove the battery bracket by remov-
ing the bolts.
Battery (XTZ660ZA):
The battery is located under the fuel
tank.Have a Yamaha dealer access the bat-
tery.
These models are equipped with a
VRLA (Valve Regulated Lead Acid) bat-
tery. There is no need to check the
electrolyte or to add distilled water.
However, the battery lead connections
need to be checked and, if necessary,
tightened.
WARNING
EWA10761
Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
1. Positive battery terminal
2. Holder
3. Bolt
4. Negative battery terminal
1. Battery
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
6
EAUS1934
Replacing the fusesTo replace the fuses (XT660Z):
The main fuse and fuse box 1 (for indi-
vidual circuits) are located under the
seat. (See page 3-16.)
To replace the fuses (XT660ZA):
The main fuse and fuse box 1 (for ABS
model only), which are in a different
and hard-to-reach location, must be
replaced by a Yamaha dealer.
Fuse box 2 (for ABS model only) and
fuse box 3 (for individual circuits) are
located under the seat. (See page
3-16.)To access fuse box 2, pull it upward
and then open it.
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not1. Main fuse
2. Spare main fuse
1. Fuse box 1
2. Parking lighting fuse
3. Signaling system fuse
4. Headlight fuse
5. Ignition fuse
6. ECU fuse
7. Radiator fan motor fuse
8. Backup fuse
9. Spare fuseZAUM1269
1. Fuse box 2
2. ABS control unit fuse
3. Spare fuse
4. Fuse box 3
5. Parking lighting fuse
6. Signaling system fuse
7. Headlight fuse
8. Ignition fuse
9. ECU fuse
10.Radiator fan motor fuse
11.Backup fuse
2
34567
1SPA RE
SPA RE SPA RE
ZAUM1247
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
6 1. Remove the headlight bulb cover,
and then disconnect the headlight
coupler.2. Unhook the headlight bulb holder,
and then remove the defective
bulb.
WARNING
EWA10791
Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooled
down.3. Place a new headlight bulb into
position, and then secure it with
the bulb holder.
4. Connect the coupler, and then in-
stall the headlight bulb cover.
5. Have a Yamaha dealer adjust the
headlight beam if necessary.
1. Do not touch the glass part of the bulb.
1. Headlight bulb cover
1. Headlight coupler
2. Headlight bulb holder
3. Headlight bulb
1. Headlight bulb holder
2. Headlight bulb
U2BDE1E0.book Page 33 Tuesday, December 16, 2014 5:38 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-36
6
EAU44792
Front wheel (for non-ABS
models)
WARNING
EWA14841
For the ABS model, have a Yamaha
dealer remove and install the wheel.
EAU56480
To remove the front wheel
WARNING
EWA10822
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Loosen the front wheel axle pinch
bolts, the wheel axle and the
brake caliper bolts.2. Lift the front wheel off the ground
according to the procedure in the
previous section “Supporting the
motorcycle”.
3. Remove the brake caliper on each
side by removing the bolts.
NOTICE: Do not apply the brake
after the brake calipers have
been removed, otherwise the
brake pads will be forced shut.
[ECA11052]
4. Pull the wheel axle out, and then
remove the wheel.To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Insert the wheel axle.
3. Install the brake calipers by install-
ing the bolts.
TIPMake sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brake
discs.4. Lower the front wheel so that it is
on the ground.
5. Tighten the wheel axle and the
brake caliper bolts to the specified
torques.NOTICE
ECAB0062
Be sure the right brake disc is posi-
tioned exactly between the brake
pads to prevent any brake drag. Tap
the side of the right fork leg to posi-
tion the disc correctly.6. Tighten wheel axle pinch bolt A,
and then pinch bolt B to their
specified torque.
1. Wheel axle
2. Brake caliper bolt
3. Front wheel axle pinch boltZAUM1266
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-37
6 7. Retighten pinch bolt A to the
specified torque.
8. Apply the brake lever several
times, and then while holding the
brake lever in, push down hard on
the handlebar several times to
check for proper fork operation.
EAU44802
Rear wheel (for non-ABS
models)
WARNING
EWA14841
For the ABS model, have a Yamaha
dealer remove and install the wheel.
EAU56711
To remove the rear wheel
WARNING
EWA10822
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.1. Loosen the axle nut.2. Lift the rear wheel off the ground
according to the procedure on
page 6-35.
3. Remove the axle nut.
4. Fully loosen the locknut on each
side of the swingarm.
5. Turn the drive chain slack adjust-
ing bolts fully in direction (a) and
push the wheel forward.
Tightening torques:
Wheel axle:
59 Nm
Front wheel axle pinch bolt:
18 Nm
Brake caliper bolt:
40 Nm
1. Wheel axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Drive chainZAUM1267
U2BDE1E0.book Page 37 Tuesday, December 16, 2014 5:38 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-39
6
EAU25872
TroubleshootingAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWA15142
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the ar-
ea, including pilot lights from waterheaters or furnaces. Gasoline or
gasoline vapors can ignite or ex-
plode, causing severe injury or prop-
erty damage.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-41
6 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
detent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while 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 cool-
ant as 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.
U2BDE1E0.book Page 41 Tuesday, December 16, 2014 5:38 PM

MOTORCYCLE CARE AND STORAGE
7-3
74. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean-
er to remove any remaining dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely
before storing or covering it.
WARNING
EWA11132
Contaminants on the brakes or tires
can cause loss of control.
Make sure that there is no oil or
wax on the brakes or tires.
If necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires with
warm water and a mild deter-
gent. Before riding at higher
speeds, test the motorcycle’s
braking performance and cor-
nering behavior.
NOTICE
ECA10801
Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.
Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
Avoid using abrasive polishing
compounds as they will wear
away the paint.TIPConsult a Yamaha dealer for ad-
vice on what products to use.
Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from the
lens.
EAUM1903
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
Storing the motorcycle in a
poorly ventilated room or cover-
ing it with a tarp, while it is still
wet, will allow water and humid-
ity to seep in and cause rust.
To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong 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.
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