2015 YAMAHA XT660Z tire pressure

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
Rear brake• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage.6-21, 6-21
Clutch• Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.6-20
Throttle grip• Make sure that operation is smooth.
• Check throttle grip free play.
• If necessary, have Yamaha dealer adjust throttle grip free play and lubricate ca-
ble and grip housing.6-16, 6-25
Control cables• Make sure that operation is smooth.
• Lubricate if necessary.6-25
Drive chain• Check chain slack.
• Adjust if necessary.
• Check chain condition.
• Lubricate if necessary.6-23, 6-24
Wheels and tires• Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary.6-17, 6-19
Brake pedal• Make sure that operation is smooth.
• Lubricate pedal pivoting point if necessary.6-26
Brake and clutch levers• Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.6-26
Sidestand• Make sure that operation is smooth.
• Lubricate pivot if necessary.6-27 ITEM CHECKS PAGE
U2BDE1E0.book Page 2 Tuesday, December 16, 2014 5:38 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
6
EAU1770M
General maintenance and lubrication chartNO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)10000 km
(6000 mi)20000 km
(12000 mi)30000 km
(18000 mi)40000 km
(24000 mi)
1 Air filter element• Replace.√√
2Clutch• Check operation.
•Adjust.√√√√√
3*Front brake• Check operation, fluid level and
vehicle for fluid leakage.√√√√√√
• Replace brake pads. Whenever worn to the limit
4*Rear brake• Check operation, fluid level and
vehicle for fluid leakage.√√√√√√
• Replace brake pads. Whenever worn to the limit
5*Brake hoses• Check for cracks or damage.
• Check for correct routing and
clamping.√√√√√
• Replace. Every 4 years
6*Wheels• Check runout, spoke tightness
and for damage.
• Tighten spokes if necessary.√√√√√
7*Tires• Check tread depth and for dam-
age.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.√√√√√
8*Wheel bearings• Check bearings for looseness or
damage.√√√√
U2BDE1E0.book Page 4 Tuesday, December 16, 2014 5:38 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
EAU21402
Valve clearanceThe valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU21647
TiresTires 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 totalweight of rider, passenger, car-
go, and accessories approved
for this model.
U2BDE1E0.book Page 17 Tuesday, December 16, 2014 5:38 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
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.
TIPThe tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.Tire information
This model is equipped with tube tires.
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.
WARNING
EWA10462
The front and rear tires should be of
the same make and design, other-
wise the handling characteristics of
the vehicle may be different, which
could lead to an accident.After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha.
Tire air pressure (measured on cold
tires):
Up to 90 kg (198 lbs) load:
Front:
210 kPa (2.10 kgf/cm², 30 psi)
Rear:
230 kPa (2.30 kgf/cm², 33 psi)
90 kg (198 lbs) to maximum load:
Front:
XT660Z 210 kPa (2.10 kgf/cm²,
30 psi)
XT660ZA 230 kPa (2.30
kgf/cm², 33 psi)
Rear:
XT660Z 230 kPa (2.30 kgf/cm²,
33 psi)
XT660ZA 250 kPa (2.50
kgf/cm², 36 psi)
Off-road riding:
Front:
XT660Z 200 kPa (2.00 kgf/cm²,
29 psi)
Rear:
XT660Z 200 kPa (2.00 kgf/cm²,
29 psi)
High-speed riding:
Front:
210 kPa (2.10 kgf/cm², 30 psi)
Rear:
230 kPa (2.30 kgf/cm², 33 psi)
Maximum load*:
190 kg (419 lb)
* Total weight of rider, passenger, car-
go and accessories
1. Tire sidewall
2. Tire tread depthMinimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
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MOTORCYCLE CARE AND STORAGE7-4
7 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 damage or injury
from sparking, make sure to
ground the spark plug elec-
trodes while turning the en-
gine 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 outlets with
plastic bags to prevent moisture
from entering them.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively 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
6-29.TIPMake any necessary repairs before
storing the motorcycle.
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SPECIFICATIONS
8-2
8
Secondary reduction ratio:
45/15 (3.000)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio:
1st:
30/12 (2.500)
2nd:
26/16 (1.625)
3rd:
23/20 (1.150)
4th:
20/22 (0.909)
5th:
20/26 (0.769)Chassis:Frame type:
Diamond
Caster angle:
28.00 °
Trail:
XT660Z 113 mm (4.4 in)
XT660ZA 120 mm (4.7 in)Front tire:Type:
With tube
Size:
XT660Z 90/90-21 M/C 54S(METZELER)-
54T(MICHELIN)
XT660ZA 90/90-21 M/C 54S(PIRELLI)Manufacturer/model:
XT660Z METZELER/TOURANCE FRONT
XT660ZA PIRELLI/SCORPION TRAIL
Manufacturer/model:
XT660Z MICHELIN/SIRAC
Rear tire:Type:
With tube
Size:
XT660Z 130/80-17 M/C 65S(METZELER)-
65T(MICHELIN)
XT660ZA 130/80-17 M/C 65S(PIRELLI)
Manufacturer/model:
XT660Z METZELER/TOURANCE FRONT
XT660ZA PIRELLI/SCORPION TRAIL
Manufacturer/model:
XT660Z MICHELIN/SIRACLoading:Maximum load:
190 kg (419 lb)
(Total weight of rider, passenger, cargo
and accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0–198 lb)
Front:
210 kPa (2.10 kgf/cm², 30 psi)
Rear:
230 kPa (2.30 kgf/cm², 33 psi)
Loading condition:
90–190 kg (198–419 lb)Front:
XT660Z 210 kPa (2.10 kgf/cm², 30 psi)
XT660ZA 230 kPa (2.30 kgf/cm², 33 psi)
Rear:
XT660Z 230 kPa (2.30 kgf/cm², 33 psi)
XT660ZA 250 kPa (2.50 kgf/cm², 36 psi)
Off-road riding:
Front:
XT660Z 200 kPa (2.00 kgf/cm², 29 psi)
Rear:
XT660Z 200 kPa (2.00 kgf/cm², 29 psi)
High-speed riding:
Front:
210 kPa (2.10 kgf/cm², 30 psi)
Rear:
230 kPa (2.30 kgf/cm², 33 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size:
21 x 1.85Rear wheel:Wheel type:
Spoke wheel
Rim size:
17 x 2.75Front brake:Type:
Dual disc brake
Operation:
Right hand operation
Specified brake fluid:
DOT 4
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