Read more about this motorcycle. Specification, detail, pictures and video. Please comments and give rating, tell others about it. Feel free to look around, we open 24 hours a day.
Make ModelYamaha XT 660X
Year: 2004
Engine: Liquid cooled, four stroke, single cylinder, 4 valves per cylinder.
Capacity: 659
Bore x Stroke: 100 x 84 mm
Compression Ratio: 10: 1
Induction: Fuel injection, 44 mm throttle body
Ignition / Starting: TCI / electric
Max Power: 33.8 kW 48 hp @ 6000 rpm
Max Torque: 58.4 Nm 5.7 kg-m @ 5250 rpm
Transmission / Drive: 5 Speed / chain
Frame: Steel tubular diamond Frame: with dual tank rails
Front Suspension: 43 mm Telescopic forks,
Rear Suspension: Oscillating arm standard Monocross.
Front Brakes: Single 225mm disc
Rear Brakes: Single 200mm disc
Front Tire: : 120/700-17
Rear Tire: : 160/60-17
Seat Height875mm
Dry-Weight: 173 kg
Fuel Capacity: 15 Litres
Consumption average25.1 km/lit
Standing ΒΌ Mile 25.0 sec
Top Speed168.8 km/h
ReviewsMotorbox / Yamaha XT Tune UP / Motornet.be / Motorbox / Motorcycle_USA / MCN / Motorbikes today / motoring.co.za /
Tips & TricksTips & Tricks / Tech Tips
Yamaha have produced liquid-cooled 660cc singles for some Year: s in a variety of models.
In XT660X guise the compression is bumped up to 10.0:1 from the previous XTZ660s 9.2:1. Continuing with the performance theme the new bike benefits from a much changed cylinder head. The new 21% lighter cylinder head has been simplified somewhat with less moving parts but the rocker arms feature roller bearings for the first time on a Yamaha motorcycle. Mechanical losses easily rob power in a large single cylinder Engine: compared to multi-cylinder powerplants, this move has been part of the effort to reduce friction losses.
Strengthening and durability measures include a new anodised forged aluminium piston which slides in a ceramic composite plated cylinder. The previous XTZ model used a steel sleeve cylinder. The new much lighter bore provides better thermal transfer and reduces oil burning. Helping to reduce vibration is a larger balancer to offset the possible drawbacks likely with the move to a 1kg lighter crankshaft. The crankpin is 10% larger for better durability.
A fuel injection system draws its supply from a 15 litre tank while a pair of stainless steel mufflers expel the gases.
Power is transferred through a 15% larger clutch to a five speed gearbox.
A new diamond style Frame: offers decreased trail while a much stiffer swingarm helps cope with the side loadings able to be achieved with the fitment of the sticky Pirelli 160/60-17 rear hoop. Up front is a 120/70-17 tyre is suspended from large 43mm Paioli forks which benefit from cross bracing.
Brembo supply the four-piston aluminium caliper which clamps on a generous 320mm disc rotor. At the rear a single piston Brembo caliper grips a 245mm disc rotor.
An immobilizer system integrates with the multi-function instrumentation featuring an LCD speedometer along with the usual bank of idiot lights.
The XT660X has plenty to offer for you to get started in supermoto. At 173kg dry it will never be a dedicated race bike. But you can have plenty of fun without going racing, so if that is your bag then the XT660X would be a wise choice.
[tubepress mode=’tag’, tagValue=’Yamaha XT 660X’]