
PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
66. Remove the oil filter element drain
bolt to drain the oil from the oil fil-
ter element.
TIPSkip steps 7…9 if the oil filter element is
not being replaced.7. Remove the oil filter element cover
by removing the bolts.
8. Remove and replace the oil filter
element and O-rings.TIPMake sure that the O-rings are properly
seated.
9. Install the oil filter element cover
by installing the bolts.
10. Install the oil filter element drain
bolt.
11. Tighten the oil filter element cover
bolts and the oil filter element
drain bolt to their specified
torques.
12. Install the engine oil drain bolts,
and then tighten them to their
specified torques.13. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil filler
cap.
NOTICE
ECAM1063
The engine oil tank must be filled in
2 steps. First, fill the engine oil tank
with 1.90 L (2.0 US qt, 1.67 Imp.qt) of
the recommended engine oil. Then,
start the engine, race it 5 or 6 times,
turn it off, and then add the remain-
der of the engine oil.
1. Oil filter element drain bolt
2. Oil filter element cover bolt
1. Oil filter element
2. O-ringTightening torques:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Oil filter element drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torques:
Engine oil drain bolt (crankcase):
30 Nm
Engine oil drain bolt (oil tank):
18 Nm
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter element replace-
ment:
2.50 L (2.64 US qt, 2.20 Imp.qt)
With oil filter element replacement:
2.60 L (2.75 US qt, 2.29 Imp.qt)
U2BDE1E0.book Page 12 Tuesday, December 16, 2014 5:38 PM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2246 mm (88.4 in)
Overall width:
896 mm (35.3 in)
Overall height:
XT660Z 1477 mm (58.1 in)
XT660ZA 1450 mm (57.1 in)
Seat height:
XT660Z 896 mm (35.3 in)
XT660ZA 865 mm (34.1 in)
Wheelbase:
XT660Z 1500 mm (59.1 in)
XT660ZA 1505 mm (59.3 in)
Ground clearance:
XT660Z 260 mm (10.24 in)
XT660ZA 205 mm (8.07 in)
Minimum turning radius:
XT660Z 1958 mm (77.1 in)
XT660ZA 1980 mm (78.0 in)Weight:Curb weight:
XT660Z 206 kg (454 lb)
XT660ZA 215 kg (474 lb)Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement:
660 cm³
Bore × stroke:
100.0 × 84.0 mm (3.94 × 3.31 in)Compression ratio:
10.0 : 1
Starting system:
Electric starter
Lubrication system:
Dry sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 15W-40, 20W-40 or
20W-50
Recommended engine oil grade:
API service SE type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter element replacement:
2.50 L (2.64 US qt, 2.20 Imp.qt)
With oil filter element replacement:
2.60 L (2.75 US qt, 2.29 Imp.qt)
Coolant quantity:Coolant reservoir (up to the maximum level
mark):
0.50 L (0.53 US qt, 0.44 Imp.qt)
Radiator (including all routes):
1.70 L (1.80 US qt, 1.50 Imp.qt)Air filter:Air filter element:
Dry elementFuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
23.0 L (6.07 US gal, 5.06 Imp.gal)
Fuel reserve amount:
XT660Z 6.7 L (1.77 US gal, 1.47 Imp.gal)
XT660ZA 5.8 L (1.53 US gal, 1.28 Imp.gal)Fuel injection:Throttle body:
ID mark:
5YK2 11Spark plug(s):Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction ratio:
75/36 (2.083)
Final drive:
Chain
–20 –10 0
1020 30 40 50 C 10 30 50 70 90 110 0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U2BDE1E0.book Page 1 Tuesday, December 16, 2014 5:38 PM

10-1
10
INDEX
AABS (for ABS models) .......................... 3-12
ABS warning light (for ABS models) ....... 3-5
Air filter element and check hose,
replacing and cleaning ....................... 6-14
Auxiliary light bulb, replacing ............... 6-34BBattery .................................................. 6-29
Brake and clutch levers, checking and
lubricating........................................... 6-26
Brake fluid, changing............................ 6-23
Brake fluid level, checking.................... 6-21
Brake lever............................................ 3-11
Brake pedal .......................................... 3-11
Brake pedal, checking and
lubricating........................................... 6-26CCables, checking and lubricating ......... 6-25
Care ........................................................ 7-1
Catalytic converter ............................... 3-15
Clutch lever........................................... 3-10
Clutch lever free play, adjusting ........... 6-20
Coolant ................................................. 6-13
Coolant temperature warning light ......... 3-4DDimmer switch........................................ 3-9
Drive chain, cleaning and lubricating ... 6-24
Drive chain slack .................................. 6-23EEngine break-in ...................................... 5-3
Engine idling speed .............................. 6-16
Engine oil and oil filter element............. 6-10
Engine stop switch ............................... 3-10
Engine trouble warning light ................... 3-5
FFront and rear brake pads, checking ... 6-21
Front fork, adjusting ............................. 3-16
Front fork, checking ............................. 6-28
Fuel ...................................................... 3-13
Fuel consumption, tips for reducing ...... 5-3
Fuel tank breather/overflow hose ........ 3-15
Fuel tank cap........................................ 3-13
Fuses, replacing ................................... 6-31HHandlebar switches ............................... 3-9
Hazard switch ...................................... 3-10
Headlight bulb, replacing ..................... 6-32
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-10IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-19
Immobilizer system ................................ 3-1
Immobilizer system indicator light ......... 3-5
Indicator lights and warning lights ......... 3-4LLicense plate light bulb, replacing ....... 6-35MMain switch/steering lock ...................... 3-2
Maintenance and lubrication, periodic... 6-4
Maintenance, emission control
system ................................................. 6-3
Matte color, caution ............................... 7-1
Model label............................................. 9-1
Multi-function display............................. 3-6NNeutral indicator light ............................. 3-4
PPanels, removing and installing .............. 6-8
Parking.................................................... 5-4
Part locations.......................................... 2-1
Pass switch............................................. 3-9RRear suspension, lubricating ................ 6-27SSafety information................................... 1-1
Seat....................................................... 3-16
Shifting.................................................... 5-2
Shift pedal............................................. 3-11
Shock absorber assembly, adjusting ... 3-18
Sidestand.............................................. 3-19
Sidestand, checking and lubricating .... 6-27
Spark plug, checking .............................. 6-9
Specifications ......................................... 8-1
Starting the engine ................................. 5-1
Start switch ........................................... 3-10
Steering, checking ................................ 6-28
Storage ................................................... 7-3
Supporting the motorcycle ................... 6-35
Swingarm pivots, lubricating ................ 6-27TTail/brake light ...................................... 6-34
Throttle grip and cable, checking and
lubricating ........................................... 6-25
Throttle grip free play, checking ........... 6-16
Tires ...................................................... 6-17
Tool kit .................................................... 6-2
Troubleshooting .................................... 6-39
Troubleshooting charts ......................... 6-40
Turn signal indicator light ....................... 3-4
Turn signal light bulb, replacing............ 6-34
U2BDE1E0.book Page 1 Tuesday, December 16, 2014 5:38 PM