Yamaha XT660X (2004-05)

The Yamaha XT660X motorcycle was produced from 2004 to 2005 with a four-stroke, single-cylinder, SOHC, 4-valve engine and a capacity of 659 cc/ 40.2 cu-in. It has a compression ratio of 10:1, is liquid-cooled, and has fuel injection with a 44 mm throttle body. The lubrication system is dry sump with an oil capacity of 2.9 Litres / 0.19 quarts, and it uses a TCI ignition system with an electric start. It has a maximum power of 33.8 kW / 48 hp @ 6000 rpm and max torque of 58.4 Nm / 5.7 kgf-m @ 5250 rpm. The motorcycle has a wet, multiple-disc coil spring clutch with a five-speed transmission and a chain final drive. The frame is a steel tubular diamond frame with dual tank rails, and the front suspension is 43 mm telescopic forks with a front wheel travel of 225 mm / 8.8 in. The rear suspension is an oscillating arm standard Monocross with a rear wheel travel of 200 mm / 7.9 in. The front and rear brakes are a single 320mm disc 4 piston caliper and a single 245mm disc 1 piston caliper, respectively. The front tire size is 120/700-17, and the rear tire size is 160/60-17. The rake is 26.0 degrees, and the trail is 94 mm / 3.7 in. The motorcycle has a height of 1170 mm / 461 in, length of 2175 mm / 85.6 in, and width of 860 mm / 33.9 in, with a wheelbase of 1505 mm / 59.3 in. It has a ground clearance of 210 mm / 8.3 in and a seat height of 875mm / 34.4 in. The dry weight is 173 kg / 318.4 lbs, and the wet weight is 186 kg / 410.1 lbs. The fuel capacity is 15 Litres / 3.9 gal.

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Technical specifications:

Make Model: Yamaha XT 660X

Year: 2004 – 05

Engine: Four stroke, single cylinder, SOHC, 4 valve

Capacity: 659 cc/ 40.2 cu-in

Bore x Stroke: 100 x 84 mm

Compression Ratio: 10: 1

Cooling System: Liquid cooled

Induction: Fuel injection, 44 mm throttle body

Lubrication: Dry sump

Oil Capacity: 2.9 Litres / 0.19 quarts

Ignition: TCI

Starting: Electric

Max Power: 33.8 kW / 48 hp @ 6000 rpm

Max Torque: 58.4 Nm / 5.7 kgf-m @ 5250 rpm

Clutch: Wet, multiple-disc coil spring

Transmission: 5 Speed

Final Drive: Chain

Frame: Steel tubular diamond frame with dual tank rails

Front Suspension: 43 mm Telescopic forks,

Front Wheel Travel: 225 mm / 8.8 in

Rear Suspension: Oscillating arm standard Monocross.

Rear Wheel Travel: 200 mm / 7.9 in

Front Brakes: Single 320mm disc 4 piston caliper

Rear Brakes: Single 245mm disc 1 piston caliper

Front Tyre: 120/700-17

Rear Tyre: 160/60-17

Rake: 26.0 degrees

Trail: 94 mm / 3.7 in

Dimensions: Height 1170 mm / 461 in Length 2175 mm / 85.6 in Width: 860 mm / 33.9 in

Wheelbase: 1505 mm / 59.3 in

Ground Clearance: 210 mm / 8.3 in

Seat Height: 875mm / 34.4 in

Dry Weight: 173 kg / 318.4 lbs

Wet Weight: 186 kg / 410.1 lbs

Fuel Capacity: 15 Litres / 3.9 gal