Jawa 90: history, specs, pictures

From CycleChaos
Jump to navigation Jump to search

The Jawa 90 was a single cylinder, two-stroke enduro / offroad motorcycle produced between 1969 and 1971. It could reach a top speed of 59 mph (95 km/h). Max torque was 4.72 ft/lbs (6.4 Nm) @ 5500 RPM. Claimed horsepower was 9.25 HP (6.9 KW) @ 6500 RPM.

Engine[edit]

The engine was a air cooled single cylinder, two-stroke. A 48.0mm bore x 49.0mm stroke result in a displacement of just 89.0 cubic centimeters. The engine featured a 8.5:1 compression ratio. Fuel was supplied via a port control.

Drive[edit]

The bike has a 5-speed transmission. The final drive was via chain.

Chassis[edit]

It came with a 2.50-18 front tire and a 2.75-18 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The 90 was fitted with a 2.77 Gallon (10.50 Liters) fuel tank. The wheelbase was 44.49 inches (1130 mm) long.

In Media[edit]

Jawa 90
Manufacturer
Also called 90 Roadster
Production 1969 - 1971
Class Road
Engine
single cylinder, two-stroke
Bore / Stroke 48.0mm x 49.0mm
Top Speed 59 mph (95 km/h)
Horsepower 9.25 HP (6.9 KW) @ 6500RPM
Torque 4.72 ft/lbs (6.4 Nm) @ 5500RPM
Fuel System carburetor. jikov
Transmission Gear box: 5-speed
Final Drive: chain
Brakes Front: expanding brake
Rear: expanding brake
Front Tire 2.50-18
Rear Tire 2.75-18
Wheelbase 44.49 inches (1130 mm)
Length 75.98 inches (1930 mm)
Width 23.62 inches (600 mm)
Weight 90.0 kg (wet)
Fuel Capacity 2.77 Gallon (10.50 Liters)
Fuel Consumption 3.20 liters/100 km (31.3 km/l or 73.51 mpg)
Manuals Service Manual


The Jawa 90 was a single cylinder, two-stroke Road motorcycle produced by Jawa between 1969 and 1971. It could reach a top speed of 59 mph (95 km/h). Max torque was 4.72 ft/lbs (6.4 Nm) @ 5500 RPM. Claimed horsepower was 9.25 HP (6.9 KW) @ 6500 RPM.

Engine[edit]

The engine was a air cooled single cylinder, two-stroke. A 48.0mm bore x 49.0mm stroke result in a displacement of just 89.0 cubic centimeters. Fuel was supplied via a port control.

Drive[edit]

The bike has a 5-speed transmission.

Chassis[edit]

It came with a 2.50-18 front tire and a 2.75-18 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The 90 was fitted with a 2.77 Gallon (10.50 Liters) fuel tank. The wheelbase was 44.49 inches (1130 mm) long.

In Media[edit]