Jawa 90: history, specs, pictures
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
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
The bike has a 5-speed transmission. The final drive was via chain.
Chassis
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
| 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
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
The bike has a 5-speed transmission.
Chassis
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.