Yamaha IT 490 Specs
The Yamaha IT 490 model is a Enduro / offroad bike manufactured by Yamaha . In this version sold from year 1983 , the dry weight is 125.0 kg (275.6 pounds) and it is equiped with a Single cylinder, two-stroke motor. The engine produces a maximum peak output power of 35.00 HP (25.5 kW) @ 6000 RPM and a maximum torque of 42.03 Nm (4.3 kgf-m or 31.0 ft.lbs) @ 5500 RPM . With this drive-train, the Yamaha IT 490 is capable of reaching a maximum top speed of . Regarding the chassis characteristics, responsible for road holding, handling behaviour and ride confort, the Yamaha IT 490 have a frame with front suspension being 43mm Telescopic adjustable forks and in the rear suspension it is equiped with Mono shock, adjustable spring preload and rebound damping . Stock tire sizes are on the front, and 150/80-18 on the rear. As for stopping power, the Yamaha IT 490 braking system includes Expanding brake (drum brake) size at the front and Expanding brake (drum brake) size at the rear.
Yamaha IT 490 General Information
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| Brand |
Yamaha |
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| Model |
Yamaha IT 490 |
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| Year |
1983 |
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| Year |
1983 |
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| Category |
Enduro / offroad |
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| Factory Warranty (Years / miles) |
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Yamaha IT 490 Dimensions, Aerodynamics and weight
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| Frame type |
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| Seat details |
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| Wheelbase |
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| Length |
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| Width |
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| Height |
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| Seat Height |
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| Alternate Seat Height |
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| Ground Clearance |
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| Trail size |
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| Wheels details |
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| Front Tyres - Rims dimensions |
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| Rear Tyres - Rims dimensions |
150/80-18 |
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| Front brakes |
Expanding brake (drum brake) |
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| Rear brakes |
Expanding brake (drum brake) |
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| Front Brakes Dimensions - Disc Dimensions |
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| Rear Brakes Dimensions - Disc Dimensions |
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| Curb Weight (including fluids) |
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| Dry Weight |
125.0 kg (275.6 pounds) |
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| Front Percentage of Weight |
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| Rear Percentage of Weight |
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| Weight-Power Output Ratio : |
0.2800 HP/kg |
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| Fuel Tank Capacity |
13.60 litres (3.59 gallons) |
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| Reserve Fuel Capacity |
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| Carrying Details and Capacity |
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| Front Suspension |
43mm Telescopic adjustable forks |
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| Front Suspension Travel |
300 mm (11.8 inches) |
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| Rear Suspension |
Mono shock, adjustable spring preload and rebound damping |
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| Rear Suspension Travel |
300 mm (11.8 inches) |
Yamaha IT 490 Engine and Transmission Technical Data
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| Engine type - Number of cylinders |
Single cylinder, two-stroke |
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| Engine details |
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| Fuel system |
Carburettor. 38mm Mikuni |
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| Engine size - Displacement - Engine capacity |
487.00 ccm (29.72 cubic inches) |
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| Bore x Stroke |
87.0 x 82.0 mm (3.4 x 3.2 inches) |
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| Compression Ratio |
4.9:1 |
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| Number of valves per cylinder |
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| Camshaft Valvetrain Configuration |
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| Maximum power - Output - Horsepower |
35.00 HP (25.5 kW) @ 6000 RPM |
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| Maximum torque |
42.03 Nm (4.3 kgf-m or 31.0 ft.lbs) @ 5500 RPM |
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| Engine Maximum RPM |
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| Cooling system |
Air |
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| Lubrication system |
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| Engine oil capacity |
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| Exhaust system |
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| Gearbox |
5-speed |
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| Transmission type, final drive ratio |
Chain |
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| Clutch type |
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| Driveline |
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Yamaha IT 490 Performance
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| Top Speed |
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| Acceleration 0 to 100 km/h (0 to 62 mph) |
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| Acceleration 0 to 400m (1/4 mile) |
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| Recuperation 60 to 140 km/h in highest gear |
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| Fuel Consumption - MPG - Economy - Efficiency |
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| CO2 emissions |
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| Emissions |
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Yamaha IT 490 Electrical Systems, Ignition and Equipment
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| Ignition Type |
CDI |
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| Electrical Details |
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| Starter Type |
Kick |
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| Instruments |
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| Lights |
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