Difference between revisions of "Yamaha U7E"

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|power            = 4.83 HP (3.6 KW) @ 6500RPM
|power            = 4.83 HP (3.6 KW) @ 6500RPM
|torque          = 4.72 ft/lbs (6.4 Nm) @ 4500RPM
|torque          = 4.72 ft/lbs (6.4 Nm) @ 4500RPM
|fuel_system      = carburettor
|fuel_system      = carburetor
|ignition        =
|ignition        =
|spark_plug      =
|spark_plug      =

Revision as of 00:02, 2 July 2019


Yamaha U7E
Manufacturer Yamaha
Production 1972 - 1973
Engine single cylinder, two-stroke
Bore / Stroke 47.0mm x 42.0mm
Top speed 53 mph (85 km/h)
Horse Power 4.83 HP (3.6 KW) @ 6500RPM
Torque 4.72 ft/lbs (6.4 Nm) @ 4500RPM
Fuel system carburetor
Battery 6.8:1
Transmission Gear box: 3-speed
Final Drive: chain
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 225-17
Rear Tire 250-17
Wheelbase 46.26 inches (1175 mm)
Dimensions L 72.44 inches (1840 mm)
W 25.39 inches (645 mm)
H 39.57 inches (1005 mm)
Weight 169.76 pounds (77.0 Kg)
Fuel capacity 1.19 Gallon (4.50 Liters)
Manuals Service Manual
Tech Specs · Brochures · Reviews · Ads · Videos

The Yamaha U7E was a single cylinder, two-stroke standard produced by Yamaha between 1972 and 1973. It could reach a top speed of 53 mph (85 km/h). Max torque was 4.72 ft/lbs (6.4 Nm) @ 4500 RPM. Claimed horsepower was 4.83 HP (3.6 KW) @ 6500 RPM.

Engine

The engine was a air cooled single cylinder, two-stroke. A 47.0mm bore x 42.0mm stroke result in a displacement of just 72.0 cubic centimeters.

Drive

The bike has a 3-speed transmission.

Chassis

It came with a 225-17 front tire and a 250-17 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The U7E was fitted with a 1.19 Gallon (4.50 Liters) fuel tank. The bike weighed just 169.76 pounds (77.0 Kg). The wheelbase was 46.26 inches (1175 mm) long.