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{{ | {{Motorcycle | ||
|name = Yamaha IT250 | |name = Yamaha IT250 | ||
| | |photo= yamaha-it250-1980-1983-4.jpg | ||
|aka = IT250E, IT 250 E, IT 250 | |aka = IT250E, IT 250 E, IT 250 | ||
|manufacturer = | |manufacturer = Yamaha | ||
|parent_company = | |parent_company = | ||
|production = 1978 - 1982 | |production = 1978 - 1982 | ||
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|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Enduro | ||
|engine = single cylinder, two-stroke | |engine = 250cc single cylinder, two-stroke | ||
|bore_stroke = 71.1mm x 71.1mm | |bore_stroke = 71.1mm x 71.1mm | ||
|compression = 7.9:1 | |compression = 7.9:1 | ||
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|torque = 10.33 ft/lbs (14.0 Nm) @ 5500RPM | |torque = 10.33 ft/lbs (14.0 Nm) @ 5500RPM | ||
|ignition = cdi | |ignition = cdi | ||
|spark_plug = | |spark_plug = {{sparkplug|NGK B9EV}} '77 , '78 , '79 , '80 , '83<br />{{sparkplug|NGK B9EGV}} '81-82 | ||
|battery = | |battery = | ||
|transmission = Gear box: 6-speed <br> | |transmission = Gear box: 6-speed <br> | ||
Final Drive: [[chain]] <br> | Final Drive: [[chain]] <br> | ||
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Rear: mono-x triangular swingarm | Rear: mono-x triangular swingarm | ||
|brakes =Front: expanding [[brake]] (drum brake). cable <br>Rear: expanding brake (drum brake). mechanical link | |brakes =Front: expanding [[brake]] (drum brake). cable <br>Rear: expanding brake (drum brake). mechanical link | ||
|front_tire = {{tire|-21}} | |front_tire = {{tire|3.00-21}} '77 , '78 , '79 , '80 , '81-82 , '83 | ||
|rear_tire = {{tire|-18}} | |rear_tire = {{tire|140/80-18}} '83<br />{{tire|6705}} '80 , '81-82<br />{{tire|4.50-18}} '77 , '78 , '79 | ||
|rake_trail = | |rake_trail = | ||
|wheelbase = 57.09 inches (1450 mm) | |wheelbase = 57.09 inches (1450 mm) | ||
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|fuel_capacity = 3.2 Gallon (12.11 Liters) | |fuel_capacity = 3.2 Gallon (12.11 Liters) | ||
|oil_capacity = | |oil_capacity = | ||
|fuel_consumption = 3.92 | |recommended_oil= Yamalube 10w-40 | ||
|fuel_consumption = 3.92 liters/100 km (25.5 km/l or 60.01 mpg) | |||
|turning_radius = | |turning_radius = | ||
|related = | |related = [[Yamaha IT125]]<br /> [[Yamaha IT175]]<br /> [[Yamaha IT200]]<br /> [[Yamaha IT250]]<br /> [[Yamaha IT350]]<br /> [[Yamaha IT400]]<br /> [[Yamaha IT425]]<br /> [[Yamaha IT490]]<br /> [[Yamaha IT500]]<br /> [[Yamaha TT250]] | ||
|competition = | |competition = | ||
|final_drive= {{chain|520x104}} ‘77<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref> | |||
|front_sprocket= 13T ‘77<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref> | |||
|rear_sprocket= 46T ‘77<ref name="wps_street_2019">{{cite book|title=2019 Western Power Sports Catalog|publisher=[https://www.wps-inc.com/catalogs Western Power Sports]|date=2019}}</ref> | |||
}} | }} | ||
The '''[[Yamaha]] IT250''' was a single cylinder, two | The '''[[Yamaha]] IT250''' was a is a 175[[cc]], [[single cylinder]], [[two stroke]], [[reed valve]], [[motocross motorcycle]] manufactured by [[Yamaha]] between 1978 and 1982. It could reach a top speed of 68 mph (110 km/h). Max [[torque]] was 10.33 ft/lbs (14.0 Nm) @ 5500 RPM. Claimed [[horsepower]] was 10.06 HP (7.5 KW) @ 5500 RPM. | ||
==Engine== | ==Engine== | ||
The engine was a [[air cooled]] single cylinder, two-stroke. A 71.1mm [[bore]] x 71.1mm [[stroke]] result in a [[displacement]] of just 247.0 cubic centimeters. Fuel was supplied via a membrane. | The engine was a [[air cooled]] single cylinder, two-stroke. A 71.1mm [[bore]] x 71.1mm [[stroke]] result in a [[displacement]] of just 247.0 cubic centimeters. Fuel was supplied via a membrane. | ||
==Frame== | |||
It has a six speed [[gearbox]], suspension is 32mm front forks, with monoshock and aluminum [[swingarm]] at the rear. The IT was made for enduro use, although it was used with success for trail riding and motocross. | |||
==Drive== | ==Drive== | ||
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==1980 - 1983 Yamaha IT 250== | ==1980 - 1983 Yamaha IT 250== | ||
<gallery mode="slideshow"> | |||
File:yamaha-it250-1980-1983-4.jpg|600px|1980 - 1983 Yamaha IT 250 | |||
File:yamaha-it250-1980-1983-3.jpg|600px|1980 - 1983 Yamaha IT 250 | |||
File:yamaha-it250-1980-1983-2.jpg|600px|1980 - 1983 Yamaha IT 250 | |||
File:yamaha-it250-1980-1983-1.jpg|600px|1980 - 1983 Yamaha IT 250 | |||
File:yamaha-it250-1980-1983-0.jpg|600px|1980 - 1983 Yamaha IT 250 | |||
</gallery> | |||
Based on the all-conquering [[:Category:Yamaha YZ series|YZ motocrossers]], the IT 250 uses such high-tech innovations as YEIS, capacitor discharge ignition, a chrome-moly double-cradle frame and Yamaha`s exclusive Monoshock suspension. | |||
==In Media== | ==In Media== | ||
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* [https://motopixel.org/pixel/wonder-woman#yamaha-it250 Wonder Woman] | * [https://motopixel.org/pixel/wonder-woman#yamaha-it250 Wonder Woman] | ||
[[Category: | [[List of Yamaha motorcycles]] | ||
[[Category:Yamaha | ==See Also== | ||
*[[Yamaha TT250]] | |||
*[[User:Ronbuell|Ronbuell's Hybrid IT250/TT250]] | |||
==References== | |||
{{reflist}} | |||
{{motorcycle-stub}} | |||
{{Yamaha}} | |||
[[Category:Yamaha motorcycles|IT250H]] | |||
[[Category:1980s motorcycles]] | |||
[[Category:Motocross motorcycles]] | |||
[[Category:250cc displacement motorcycles]] | |||
[[Category:250cc 2-stroke motorcycles]] | |||
[[Category:250cc Single cylinder motorcycles]] | |||
[[Category:Single cylinder motorcycles]] | |||
[[Category:Single cylinder 2-stroke motorcycles]] | |||
[[Category:2-stroke motorcycles]] | |||
[[Category:Yamaha IT series]] | |||
[[Category:1970s motorcycles]] | [[Category:1970s motorcycles]] | ||
[[Category:1980s motorcycles]] | [[Category:1980s motorcycles]] | ||