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EAUS1930
Replacing the fuses
To replace the fuses (XT660Z):
The main fuse and fuse box 1 (for
individual circuits) are located under
the seat. (See page 3-16).
1. Main fuse
2. Spare main fuse1. Fuse box 1
2. Parking lighting fuse
3. Signaling system fuse
4. Headlight fuse
5. Ignition fuse
6. ECU fuse
7. Radiator fan fuse
8. Backup fuse
9. Spare fuseTo replace the fuses (XT660ZA):
The main fuse and fuse box 1 (for
ABS model only),which are in a diffe-
rent 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.
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 fuse
11. Backup fuse
12. Spare fuse
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 not
use a fuse of a higher ampera-
ge rating than recommended
to avoid causing extensive
damage to the electrical sys-
tem and possibly a fire.
[EWA15131]
PERIODIC MAINTENANCE AND ADJUSTMENT
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Page 92 of 100

Dimensions:Overall length:
XT660Z 2246 mm (88.42 in)
XT660ZA 2260 mm (89.0 in)
Overall width:
900 mm (35.4 in)
Overall height:
XT660Z 1477 mm (57.1 in)
XT660ZA 1450 mm (57.1 in)
Seat height:
XT660Z 896 mm (35.27 in)
XT660ZA 865 mm (34.1 in)
Wheelbase:
XT660Z 1500 mm (59.05 in)
XT660ZA 1505 mm (59.3 in)
Ground clearance:
XT660Z 260 mm (10.23 in)
XT660ZA 205 mm (8.07 in)
Minimum turning radius:
1980 mm (78.0 in)
Weight:With oil and fuel:
XT660Z 208.5 kg (459 lb)
XT660ZA 215 kg (474 lb)
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
660 cm
3
Bore x stroke:
100.0 x 84.0 mm (3.94 x 3.31 in)Compression ratio:
10.00 :1
Starting system:
Electric starter
Lubrication system:
Dry sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade:
API service SE, SF, SG 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)
Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):
0.50 L (0.53 US qt, 0.44 Imp.qt)
Radiator capacity (including all routes):
1.20 L (1.26 US qt, 1.05 Imp.qt)
Air filter:Air filter element:
Dry element
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
23.0 L (6.08 US gal, 5.06 Imp.gal)
Fuel reserve amount:
XT660Z 6.7 L (1.76 US gal, 1.46 Imp.gal)
XT660ZA 5.8 L (1.53 US gal, 1.28 Imp.gal)
Throttle body:ID mark:
5YK2 11
Manufacturer:
MIKUNI
Spark plug(s):Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Clutch:Clutch type:
Wet. multiple-disc
Transmission:Primary reduction system:
Spur gear
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40
SAE 20W-40
SAE 20W-50
SAE 10W-40
SAE 10W-50
SPECIFICATIONS
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Page 93 of 100

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
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Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4
Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
XT660Z 210.0 mm (8.26 in)
XT660ZA 160.0 mm (6.30 in)
Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
XT660Z 200.0 mm (7.87 in)
XT660ZA 145.0 mm (5.71 in)
Electrical system:Ignition system:
TCI
Charging system:
AC magneto
Battery:Model:
GT9B-4
Voltage, capacity:
12 V, 8.0 Ah
Headlight:Bulb type:
Halogen bulb
Bulb voltage, wattage x quantity:Low beam headlight:
12 V, 55.0 W x 1
High beam headlight:
12 V, 55.0 W x 1
Tail/brake light:
LED
Front turn signal light:
12 V, 10.0 W x 2
Rear turn signal light:
12 V, 10.0 W x 2
Auxiliary light:
12 V, 5.0 W x 2
Meter lighting:
LED (backlight)
Neutral indicator light:
LED
High beam indicator light:
LED
Turn signal indicator light:
LED
Coolant temperature warning light:
LED
Engine trouble warning light:
LED
ABS warning light (for ABS models):
LED
Immobilizer system indicator light:
LED
Fuses:Main fuse:
30.0 A
Headlight fuse:
20.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Parking lighting fuse:
10.0 A
Radiator fan fuse:
7.5 A
Fuel injection system fuse:
10.0 A
ABS control unit fuse (for ABS models):
5.0 A
ABS motor fuse (for ABS models):
30.0 A
ABS solenoid fuse (for ABS models):
20.0 A
SPECIFICATIONS
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Page 95 of 100
EAU48610
Identification numbers
Record the vehicle identification num-
ber and model label information in the
spaces provided below for assistance
when ordering spare parts from a
Yamaha dealer or for reference in
case the vehicle is stolen.
VEHICLE IDENTIFICATION NUMBER:
MODEL LABEL INFORMATION:
EAU26400
Vehicle identification number
1. Vehicle identification number
The vehicle identification number is
stamped into the steering head pipe.
Record this number in the space pro-
vided.
TIP
The vehicle identification number is
used to identify your motorcycle and
may be used to register your
motorcycle with the licensing autho-
rity in your area.
EAU26520
Model label
FOR XT660Z
1. Model label
FOR XT660ZA
1. Model label
The model label is affixed to the frame
CONSUMER INFORMATION
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