Yamaha XT660R 2004 User Manual

6 - 3
COOL
RADIATOR
EAS00455
CHECKING THE RADIATOR
1. Check:
• radiator fins
Obstruction
→
Clean.
Apply compressed air to the rear of the radi-
ator.
Damage
→
Repair or replace.
NOTE:
_
Straighten any flattened fins with a thin, flat-
head screwdriver.
2. Check:
• radiator hoses
Cracks/damage
→
Replace.
3. Measure:
• radiator cap opening pressure
Below the specified pressure
→
Replace
the radiator cap.
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a. Install the radiator cap tester
1
and radiator
cap tester adaptor
2
and radiator cap
tester adaptor
3
to the radiator cap
4
.
b. Apply the specified pressure for ten sec-
onds and make sure there is no drop in
pressure.
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4. Check:
• radiator fan
Damage
→
Replace.
Malfunction
→
Check and repair.
Refer to “COOLING SYSTEM” in chapter 8.
Radiator cap opening pressure
110.0 ~ 140.0 kPa
(1.10 ~ 1.40 kg/cm
2
,
16.0 ~ 20.3 psi)
Radiator cap tester
90890-01325
Radiator cap tester adaptor
90890-01352
Radiator cap tester adaptor
90890-01497
Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
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Yamaha XT660R 2004 Specifications

General

Displacement	660cc
Compression Ratio	10.0:1
Fuel System	Fuel Injection
Ignition	TCI
Transmission	5-speed
Final Drive	Chain
Front Suspension	Telescopic forks
Front Brake	Single disc, 298 mm
Rear Brake	Single disc, 245 mm
Front Tire	90/90-21
Rear Tire	130/80-17
Seat Height	865 mm (34.1 inches)
Fuel Capacity	15 liters (3.96 gallons)
Engine type	Liquid cooled, 4-stroke, single cylinder, SOHC
Bore x Stroke	100.0 mm x 84.0 mm
Power	35 kW (48 hp) @ 6, 000 rpm
Torque	58 Nm @ 5, 500 rpm
Rear Suspension	Swingarm, (link suspension)
Dry Weight	165 kg
Length	2, 240 mm
Width	865 mm
Height	1, 230 mm