2011 YAMAHA XT660Z radiator

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Page 23 of 100

YAMAHA XT660Z 2011  Owners Manual EAU11444
Coolant temperature warning light
“”
This warning light comes on if the
engine overheats. If this occurs, stop
the engine immediately and allow the
engine to cool.
The electrical circuit

Page 60 of 100

YAMAHA XT660Z 2011  Owners Manual EAU20070
Coolant
The coolant level should be checked
before each ride. In addition, the coo-
lant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU20253

Page 61 of 100

YAMAHA XT660Z 2011  Owners Manual EAU33031
Changing the coolant
The coolant must be changed at the
intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer change the
coolant. WARNING! Never attempt

Page 77 of 100

YAMAHA XT660Z 2011  Owners Manual 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

Page 78 of 100

YAMAHA XT660Z 2011  Owners Manual 3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EA

Page 87 of 100

YAMAHA XT660Z 2011  Owners Manual Engine overheatingEWA10400
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

Page 92 of 100

YAMAHA XT660Z 2011  Owners Manual 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 89

Page 94 of 100

YAMAHA XT660Z 2011  Owners Manual 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:
XT66