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Yamaha XTZ 660 Ténéré

Make Model	Yamaha XTZ 660 Ténéré
Year	1994
Engine	Four stroke, single cylinder, SOHC, 5 valves per cylinder
Capacity	660 cc / 40.2 cu-in
Bore x Stroke	100 x 84 mm
Cooling System	Liquid cooled,
Compression Ratio	9.2:1
Lubrication	Dry sump
Induction	TEIKEI Y 26 PV / 3YF 00
Ignition	Transistor Controlled
Starting	Electric
Max Power	46 hp / 35.5 kW @ 6000 rpm
Max Power Rear Tyre	42.9 hp @ 6400 rpm
Max Torque	55.9 Nm / 42 ft. lb @ 5000 rpm
Transmission	5 Speed
Final Drive	Chain
Gear Ratio	1st 2,583 2nd 1,588 3rd 1,200 4th 0,954 5th 0,792
Front Suspension	43mm Telescopic forks
Rear Suspension	Monocross adjustable for preload, 5-way rebound damping
Front Brakes	Single 282mm disc 4 piston caliper
Rear Brakes	Single 245mm disc 1 piston caliper
Front Tyre	90/90-21
Rear Tyre	120/90-17
Oil Capacity	3.0 Litres
Dimensions	Length 2265 mm / 89.1 in Width 885 mm / 34.8 in Height 1355 mm / 53.3 in
Wheelbase	1495 mm / 58.9 in
Seat Height	865 mm / 34.1 in
Dry Weight	169 kg / 372.5 lbs
Wet Weight	195 kg / 429 lbs
Fuel Capacity	20 Litres / 5.3 US gal
Reserve	3.5 Litres
Consumption Average	16.7 km/lit
Braking 60 - 0 / 100 - 0	14.7 m / 40.8 m
Standing ¼ Mile	14.0 sec / 145.3 km/h
Top Speed	167.5 km/h / 104 mph
Road Test	Tuttomoto 1994

ifth generation: Streamlined
The last generation of the 5-valve XTZ 660 Ténéré appeared in 1994. This last evolution had a completely new streamlined bodywork with a dual front headlamp inspired by the famous Super Ténéré 750cc twin. There were no significant mechanical changes to engine or chassis.

In 1991 the XTZ660 appeared, the last model of the single cylinder Ténéré. This model no longer has much in common with the first Ténéré. The petrol tank shrank again to 20 liters and the suspension travel was shortened to 220mm at the front and 200mm at the rear. The whole appearance of the XTZ660 model was lower, heavier and longer than the original 1983 model.

More than the appearance, the new engine characterised this Model. The first single cylinder with five valves provided a agreeable engine characteristic The engine is not quite as flexible as that of the original Ténéré, but in the middle and upper range it clearly had more power. The oil tank was moved again into the frame - same as the XT500 - and water-cooling provided more stable engine temperature control. The somewhat longer wheelbase provides better straight line stability at high speed and the dual-piston front disc brake provided better stopping power.

Altogether the XTZ660 is a good-natured, solid Enduro which does not, however, have much in common with the concept of the first Ténéré. For trips on desert routes, which was the original idea, it should only be used with caution. In 1994 Yamaha added a broad fairing with double headlights, but this did not have much impact on sales of the XTZ660 Ténéré. Thus production was stopped in 1999.
Yamaha now had no model between the fast twin-cylinder XTZ750 and the new light single cylinder machines.