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{{Infobox Motorcycle | |||
|name = Yamaha IT490 | |||
|image = | |||
|aka = | |||
|manufacturer = [[Yamaha]] | |||
|parent_company = | |||
|production = 83-84 | |||
|model_year = | |||
|predecessor = | |||
|successor = | |||
|class = | |||
|engine = 490 | |||
|bore_stroke = | |||
|compression = | |||
|top_speed = | |||
|power = | |||
|torque = | |||
|ignition = | |||
|spark_plug = {{sparkplug|B8EV}} '83-84 | |||
|battery = | |||
|transmission = | |||
|frame = | |||
|suspension = | |||
|brakes = | |||
|front_tire = {{tire|3.00-21}} '83-84 | |||
|rear_tire = {{tire|150/80-18}} '83-84 | |||
|rake_trail = | |||
|wheelbase = | |||
|length = | |||
|width = | |||
|height = | |||
|seat_height = | |||
|dry_weight = | |||
|wet_weight = | |||
|fuel_capacity = | |||
|oil_capacity = | |||
|fuel_consumption = | |||
|turning_radius = | |||
|related = | |||
|competition = | |||
}} | |||
The '''Yamaha IT490''' is a [[motorcycle]] produced by [[Yamaha]] from 1983 to 1984. | |||
==1983== | |||
[[Image:1983-Yamaha-IT490-Blue-0.jpg|left|thumb|1983 Yamaha IT490 in Blue]] | |||
[[Image:1983-Yamaha-IT490-Blue-1.jpg|left|thumb|1983 Yamaha IT490 in Blue]] | |||
[[Image:1983-Yamaha-IT490-Blue-2.jpg|left|thumb|1983 Yamaha IT490 in Blue]] | |||
[[Image:1983-Yamaha-IT490-Blue-3.jpg|left|thumb|1983 Yamaha IT490 in Blue]] | |||
[[Image:1983-Yamaha-IT490-Blue-4.jpg|left|thumb|1983 Yamaha IT490 in Blue]] | |||
<br style="clear: left"/> | |||
{{Motorcycle | ==See Also== | ||
|name = Yamaha IT490 | *[[Yamaha IT200]] | ||
| | *[[Yamaha IT250H]] | ||
{{Yamaha}} | |||
[[Category:Yamaha motorcycles|IT490]] | |||
[[Category:Yamaha IT series]] | |||
{{Infobox Motorcycle | |||
|name = '''Yamaha IT490''' | |||
|image = | |||
|aka = IT 490 | |aka = IT 490 | ||
|manufacturer = Yamaha | |manufacturer = [[Yamaha]] | ||
|parent_company = | |parent_company = | ||
|production = 1983 - 1984 | |production = 1983 - 1984 | ||
|model_year = | |model_year = | ||
|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = Enduro | |class = [[Enduro]] | ||
|engine = Two stroke, single cylinder, read valve, air cooled | |engine = Two stroke, single cylinder, read valve, air cooled | ||
|bore_stroke = 86.4mm x 86.4mm | |bore_stroke = 86.4mm x 86.4mm | ||
|compression = 4.9:1 | |compression = 4.9:1 | ||
|top_speed = | |top_speed = | ||
|power = 35.0 HP (26.1 KW) @ 6000RPM | |power = 35.0 HP (26.1 KW) @ 6000RPM | ||
|torque = 30.98 ft/lbs (42.0 Nm) @ 5500RPM | |torque = 30.98 ft/lbs (42.0 Nm) @ 5500RPM | ||
|ignition = cdi | |ignition = cdi | ||
|spark_plug = | |spark_plug = | ||
|battery = | |battery = 4.9:1 | ||
|transmission = Gear box: 5-Speed <br> | |transmission = Gear box: 5-Speed <br> | ||
Final Drive: Chain <br> | Final Drive: Chain <br> | ||
Line 40: | Line 100: | ||
|fuel_capacity = 3.59 Gallon (13.60 Liters) | |fuel_capacity = 3.59 Gallon (13.60 Liters) | ||
|oil_capacity = | |oil_capacity = | ||
|fuel_consumption = | |fuel_consumption = | ||
|turning_radius = | |turning_radius = | ||
|related = | |related = | ||
|competition = | |competition = | ||
}} | }} | ||
The '''[[Yamaha]] IT 490''' was a Two stroke, single cylinder, read valve, [[air cooled]] Enduro [[motorcycle]] produced by [[Yamaha]] between 1983 and 1984. Max [[torque]] was 30.98 ft/lbs (42.0 Nm) @ 5500 RPM. Claimed [[horsepower]] was 35.0 HP (26.1 KW) @ 6000 RPM. | The '''[[Yamaha]] IT 490''' was a Two stroke, single cylinder, read valve, [[air cooled]] Enduro [[motorcycle]] produced by [[Yamaha]] between 1983 and 1984. Max [[torque]] was 30.98 ft/lbs (42.0 Nm) @ 5500 RPM. Claimed [[horsepower]] was 35.0 HP (26.1 KW) @ 6000 RPM. | ||
==Engine== | ==Engine== | ||
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==Drive== | ==Drive== | ||
The bike has a 5-Speed transmission. Power was moderated via the Wet multi-discs. | The bike has a 5-Speed transmission. Power was moderated via the Wet multi-discs. | ||
==Chassis== | ==Chassis== | ||
It came with a 3.00 -21 front [[tire]] and a 150/80 -18 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a 43mm Telescopic adjustable forks while the rear was equipped with a Mono shock, adjustable spring preload and rebound damping. The IT 490 was fitted with a 3.59 Gallon (13.60 Liters) fuel tank. The bike weighed just 275.58 pounds (125.0 Kg). The wheelbase was 56.5 inches (1435 mm) long. | It came with a 3.00 -21 front [[tire]] and a 150/80 -18 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a 43mm Telescopic adjustable forks while the rear was equipped with a Mono shock, adjustable spring preload and rebound damping. The IT 490 was fitted with a 3.59 Gallon (13.60 Liters) fuel tank. The bike weighed just 275.58 pounds (125.0 Kg). The wheelbase was 56.5 inches (1435 mm) long. | ||
== | ==1984 Yamaha IT 490== | ||
[[File:yamaha-it490-1984-1984-1.jpg|600px|1984 Yamaha IT 490]] | |||
File: | [[File:yamaha-it490-1984-1984-0.jpg|600px|1984 Yamaha IT 490]] | ||
File: | |||
The big news in the powerplant is the bump in displacement from 465 to 487cc, accomplished simply by increasing the cylinder bore two millimeters. This follows the large, seven-millimeter increase in stroke which boosted the IT's displacement from 425 to 465cc in 1981. Aside from the trendiness involved in increasing their open-classers' engine sizes, most manufacturers are nudging 500cc because more displacement is the most straightforward route to better power. | The big news in the powerplant is the bump in displacement from 465 to 487cc, accomplished simply by increasing the cylinder bore two millimeters. This follows the large, seven-millimeter increase in stroke which boosted the IT's displacement from 425 to 465cc in 1981. Aside from the trendiness involved in increasing their open-classers' engine sizes, most manufacturers are nudging 500cc because more displacement is the most straightforward route to better power. | ||
[[Category:Enduro motorcycles]] | [[Category:Enduro motorcycles]] | ||
[[Category:Yamaha motorcycles]] | |||
[[Category:1980s motorcycles]] | [[Category:1980s motorcycles]] | ||
[[Category:Motorcycles needing images]] |