2004 Yamaha XT 660 X Supermotard specifications

Available technical data for this model and year. Specifications can vary by market and version.

Technical specifications

Displacement	659.0 ccm (40.21 cubic inches)
Engine type	Single cylinder, four-stroke
Power	47.3 HP (34.5 kW )) @ 6000 RPM
Torque	58.4 Nm (6.0 kgf-m or 43.1 ft.lbs) @ 5250 RPM
Compression	10.0:1
Bore x stroke	100.0 x 84.0 mm (3.9 x 3.3 inches)
Fuel control	Double Overhead Cams/Twin Cam (DOHC)
Cooling system	Liquid
Front suspension	Telescopic fork, diameter 43mm
Rear suspension	Monocross with linkage
Front brakes	Single disc
Rear brakes	Single disc
Front tyre	120/70-17
Rear tyre	160/60-17
Dry weight	173.0 kg (381.4 pounds)
Seat height	875 mm (34.4 inches) If adjustable, lowest setting.
Overall height	1349 mm (53.1 inches)
Overall length	2131 mm (83.9 inches)
Overall width	860 mm (33.9 inches)
Ground clearance	200 mm (7.9 inches)
Wheelbase	1485 mm (58.5 inches)

Source: Bikez: XT 660 X Supermotard, 2004. Retrieved 2026-09-19. Match confidence: exact.

Years listed are the entries held in this archive, rather than a complete production history.