Yamaha XT660R Service Manual page 40

Item
Steering
Steering bearing type
Lock to lock angle (left)
Lock to lock angle (right)
Front suspension
Suspension type
Front fork type
Front fork travel
Spring
Free length
Spacer length
Installed length
Spring rate (K1)
Spring stroke (K1)
Spring rate (K2)
Spring stroke (K2)
Optional spring available
Fork oil
Recommended oil
Quantity (each front fork leg)
Level (from the top of the inner
tube, with the inner tube fully com-
pressed, and without the fork
spring)
Inner tube outer diameter
Inner tube bearing
CHASSIS SPECIFICATIONS
Standard
Taper roller bearing
44.0°
44.0°
Telescopic fork
Coil spring/oil damper
225.0 mm (8.86 in) (XT660R)
200.0 mm (7.87 in) (XT660X)
633.0 mm (24.92 in) (XT660R)
593.0 mm (23.35 in) (XT660X)
0 mm (0 in)
628.0 mm (24.72 in) (XT660R)
588.0 mm (23.15 in) (XT660X)
3.75 N/mm (0.38 kg/mm, 21.41 lb/in)
(XT660R)
3.75 N/mm (0.38 kg/mm, 21.41 lb/in)
(XT660X)
0 ~ 120.0 mm (0 ~ 4.72 in) (XT660R)
0 ~ 120.0 mm (0 ~ 4.72 in) (XT660X)
6.00 N/mm (0.61 kg/mm, 34.26 lb/in)
(XT660R)
6.00 N/mm (0.61 kg/mm, 34.26 lb/in)
(XT660X)
120.0 ~ 225.0 mm (4.72 ~ 8.86 in)
(XT660R)
120.0 ~ 200.0 mm (4.72 ~ 7.87 in)
(XT660X)
No
Fork oil 10 W or equivalent
3
640.0 cm (22.53 Imp oz, 21.64 US oz)
(XT660R)
3
600.0 cm (21.12 Imp oz, 20.29 US oz)
(XT660X)
125.0 mm (4.92 in) (XT660R)
125.0 mm (4.92 in) (XT660X)
43.0 mm (1.69 in)
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2 - 14
SPEC
Limit
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620 mm
(24.41 in)
581 mm
(22.87 in)
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0.2 mm
(0.0079 in)