ITEM CHECKS PAGE
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
Rear brake• Replace if necessary. 6-21
• Check fluid level in reservoir.
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
Clutch• Lubricate cable if necessary.
6-20
• Check lever free play.
• Adjust if necessary.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-17, 6-25
• If necessary, have Yamaha dealer adjust cable free play and lubricate cable
and grip housing.
Control cables• Make sure that operation is smooth.
• Lubricate if necessary.6-25
• Check chain slack.
Drive chain• Adjust if necessary.
6-23, 6-24
• Check chain condition.
• Lubricate if necessary.
• Check for damage.
Wheels and tires• Check tire condition and tread depth.
6-17, 6-19
• Check air pressure.
• Correct if necessary.
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.6-25
Sidestand• Make sure that operation is smooth.
• Lubricate pivot if necessary.6-26
Chassis fasteners• Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary.—
Instruments, lights, signals • Check operation.
and switches• Correct if necessary.—
FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
56P-F8199-E0 30/6/10 09:24 Página 41
PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
6
EAU1770C
General maintenance and lubrication chart
ODOMETER READING
NO. ITEM CHECK OR MAINTENANCE JOBANNUAL
1000 km 10000 km 20000 km 30000 km 40000 kmCHECK
(600 mi) (6000 mi) (12000 mi) (18000 mi) (24000 mi)
1Air 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.√√√ √√• Replace. Every 4 years
• Check runout, spoke tightness
6*Wheelsand for damage.√√ √ √ √
• Tighten spokes if necessary.
• Check tread depth and for
damage.
7*Tires• Replace if necessary.√√√ √√
• Check air pressure.
• Correct if necessary.
8*Wheel bearings• Check bearing for looseness or
damage.√√√ √
56P-F8199-E0 30/6/10 09:24 Página 50
EAU21383
Checking the throttle cable
free play
1. Throttle grip free play
The throttle cable free play should
measure 3.0–5.0 mm (0.12–0.20 in) at
the inner edge of the throttle grip.
Periodically check the throttle cable
free play and, if necessary, have a
Yamaha dealer adjust it.
EAU21401
Valve clearance
The valve clearance changes with
use, resulting in improper air-fuel mix-
ture and/or engine noise. To prevent
this from occurring, the valve clearan-
ce must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU21642
Tires
To maximize the performance, durabi-
lity, and safe operation of your
motorcycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be chec-
ked and, if necessary, adjusted befo-
re each ride.
EWA10503
Operation of this vehicle with
improper tire pressure may
cause severe injury or death
from loss of control.
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperatu-
re 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,
cargo, and accessories appro-
ved for this model.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
56P-F8199-E0 30/6/10 09:24 Página 63
EWA10511
Never overload your vehicle. Ope-
ration of an overloaded vehicle
could cause an accident.
Tire inspection
1. Tire sidewall
2. Tire tread depth
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 sidewall is
cracked, have a Yamaha dealer replace
the tire immediately.
TIPThe tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire information
This motorcycle is equipped with tube
tires.
EWA10461
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 lis-
ted below have been approved for
this model by Yamaha Motor Co., Ltd.
WARNING
Minimum tire tread depth (front
and rear):
1.6 mm (0.06 in)
WARNINGTire air pressure (measured on
cold tires):
0–90 kg (0–198 lb):
Front:
210 kPa (2.10 kgf/cm
2,
30 psi, 2.10 bar)
Rear:
230 kPa (2.30 kgf/cm
2,
33 psi, 2.30 bar)
XT660Z 90–190 kg (198–419 lb)
XT660ZA 90–188 kg (198–414 lb):
Front:
230 kPa (2.30 kgf/cm
2,
33 psi, 2.30 bar)
Rear:
250 kPa (2.50 kgf/cm
2,
36 psi, 2.50 bar)
Off-road riding:
Front:
200 kPa (2.00 kgf/cm
2,
29 psi, 2.00 bar)
Rear:
200 kPa (2.00 kgf/cm
2,
29 psi, 2.00 bar)
High-speed riding:
Front:
210 kPa (2.10 kgf/cm
2,
30 psi, 2.10 bar)
Rear:
230 kPa (2.30 kgf/cm
2,
33 psi, 2.30 bar)
Maximum load*:
XT660Z: 190 kg (419 lb)
XT660ZA: 188 kg (414 lb)
* Total weight of rider, passenger,
cargo and accessories
PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
56P-F8199-E0 30/6/10 09:24 Página 64
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 sparking 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 plugelectrodes while turning the
engine over.
[EWA10951]
4. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the
sidestand/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. Alter-
natively, turn the wheels a little
every month in order to prevent
the tires from becoming degra-
ded 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 excessively cold or warm pla-
ce [less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more
information on storing the bat-
tery, see page 6-29.
TIP
Make any necessary repairs before
storing the motorcycle.
MOTORCYCLE CARE AND STORAGE
7-4
7
56P-F8199-E0 30/6/10 09:24 Página 91
Primary reduction ratio:
75/36 (2.083)
Secondary reduction system:
Chain drive
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 º
Trail:
XT660Z 113.0 mm (4.44 in)
XT660ZA 120.0 mm (4.72 in)
Front tire:Type:
With tubeSize:
XT660Z 90/90-21M/C 54S
XT660Z 90/90-21M/C 54T
XT660ZA 90/90-21M/C 54S
Manufacturer/model:
XT660Z METZELER/TOURANCE FRONT
XT660Z MICHELIN/SIRAC
XT660ZA PIRELLI/SCORPION TRAIL
Rear tire:Type:
With tube
Size:
XT660Z 130/80-17M/C 65S
XT660Z 130/80-17M/C 65T
XT660ZA 130/80-17M/C 65S
Manufacturer/model:
XT660Z METZELER/TOURANCE FRONT
XT660Z MICHELIN/SIRAC
XT660ZA PIRELLI/SCORPION TRAIL
Loading:Maximum load:
XT660Z 190 kg (419 lb)
XT660ZA 188 kg (414 lb)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
210 kPa (2.10 kgf/cm
2, 30 psi, 2.10 bar)
Rear:
230 kPa (2.30 kgf/cm
2, 33 psi, 2.30 bar)Loading condition:
XT660Z 90 -190 kg (198 -419 lb)
XT660ZA 90 -188 kg (198 -414 lb)
Front:
230 kPa (2.30 kgf/cm
2, 33 psi, 2.30 bar)
Rear:
250 kPa (2.50 kgf/cm
2, 36 psi, 2.50 bar)
Off-road riding:
Front:
200 kPa (2.00 kgf/cm
2, 29 psi, 2.00 bar)
Rear:
200 kPa (2.00 kgf/cm
2, 29 psi, 2.00 bar)
High-speed riding:
Front:
210 kPa (2.10 kgf/cm
2, 30 psi, 2.10 bar)
Rear:
230 kPa (2.30 kgf/cm
2, 33 psi, 2.30 bar)
Front wheel:Wheel type:
Spoke wheel
Rim size:
21x1.85
Rear wheel:Wheel type:
Spoke wheel
Rim size:
17x 2.75
Front brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
SPECIFICATIONS
8-2
8
56P-F8199-E0 30/6/10 09:24 Página 93