Yamaha GT80 B Specs
The Yamaha GT80 B model is a Enduro / offroad bike manufactured by Yamaha . In this version sold from year 1975 , the dry weight is 59.0 kg (130.0 pounds) and it is equiped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of 4.90 HP (3.6 kW) and a maximum torque of 6.10 Nm (0.6 kgf-m or 4.5 ft.lbs) @ 7200 RPM . With this drive-train, the Yamaha GT80 B is capable of reaching a maximum top speed of 91.0 km/h (56.5 mph) . Regarding the chassis characteristics, responsible for road holding, handling behaviour and ride confort, the Yamaha GT80 B have a Steel frame with front suspension being Inverted forks and in the rear suspension it is equiped with non-adjustable dual shock . Stock tire sizes are 2.50-15 on the front, and 2.75-14 on the rear. As for stopping power, the Yamaha GT80 B braking system includes Expanding brake (drum brake) size 127 mm (5.0 inches) at the front and Expanding brake (drum brake) size 127 mm (5.0 inches) at the rear.
Yamaha GT80 B General Information
|
|
| Brand |
Yamaha |
|
| Model |
Yamaha GT80 B |
|
| Year |
1975 |
|
| Year |
1975 |
|
| Category |
Enduro / offroad |
|
| Factory Warranty (Years / miles) |
|
Yamaha GT80 B Dimensions, Aerodynamics and weight
|
|
| Frame type |
Steel |
|
| Seat details |
|
|
| Wheelbase |
|
|
| Length |
|
|
| Width |
|
|
| Height |
|
|
| Seat Height |
|
|
| Alternate Seat Height |
|
|
| Ground Clearance |
|
|
| Trail size |
|
|
| Wheels details |
|
|
| Front Tyres - Rims dimensions |
2.50-15 |
|
| Rear Tyres - Rims dimensions |
2.75-14 |
|
| Front brakes |
Expanding brake (drum brake) |
|
| Rear brakes |
Expanding brake (drum brake) |
|
| Front Brakes Dimensions - Disc Dimensions |
127 mm (5.0 inches) |
|
| Rear Brakes Dimensions - Disc Dimensions |
127 mm (5.0 inches) |
|
| Curb Weight (including fluids) |
60.3 kg (133.0 pounds) |
|
| Dry Weight |
59.0 kg (130.0 pounds) |
|
| Front Percentage of Weight |
|
|
| Rear Percentage of Weight |
|
|
| Weight-Power Output Ratio : |
0.0831 HP/kg |
|
| Fuel Tank Capacity |
4.92 litres (1.30 gallons) |
|
| Reserve Fuel Capacity |
|
|
| Carrying Details and Capacity |
|
|
| Front Suspension |
Inverted forks |
|
| Front Suspension Travel |
102 mm (4.0 inches) |
|
| Rear Suspension |
non-adjustable dual shock |
|
| Rear Suspension Travel |
76 mm (3.0 inches) |
Yamaha GT80 B Engine and Transmission Technical Data
|
|
| Engine type - Number of cylinders |
Single cylinder, two-stroke |
|
| Engine details |
|
|
| Fuel system |
Carburettor. Teikei |
|
| Engine size - Displacement - Engine capacity |
72.00 ccm (4.39 cubic inches) |
|
| Bore x Stroke |
47.0 x 42.0 mm (1.9 x 1.7 inches) |
|
| Compression Ratio |
6.0:1 |
|
| Number of valves per cylinder |
|
|
| Camshaft Valvetrain Configuration |
|
|
| Maximum power - Output - Horsepower |
4.90 HP (3.6 kW) |
|
| Maximum torque |
6.10 Nm (0.6 kgf-m or 4.5 ft.lbs) @ 7200 RPM |
|
| Engine Maximum RPM |
8000 |
|
| Cooling system |
Air |
|
| Lubrication system |
Auto Lube |
|
| Engine oil capacity |
|
|
| Exhaust system |
Single tuned pipe |
|
| Gearbox |
4-speed |
|
| Transmission type, final drive ratio |
Chain |
|
| Clutch type |
Wet plate |
|
| Driveline |
|
Yamaha GT80 B Performance
|
|
| Top Speed |
91.0 km/h (56.5 mph) |
|
| Acceleration 0 to 100 km/h (0 to 62 mph) |
|
|
| Acceleration 0 to 400m (1/4 mile) |
|
|
| Recuperation 60 to 140 km/h in highest gear |
|
|
| Fuel Consumption - MPG - Economy - Efficiency |
|
|
| CO2 emissions |
|
|
| Emissions |
|
Yamaha GT80 B Electrical Systems, Ignition and Equipment
|
|
| Ignition Type |
Points type Ignition |
|
| Electrical Details |
|
|
| Starter Type |
Kick |
|
| Instruments |
|
|
| Lights |
|
|
