Difference between revisions of "Yamaha IT250"
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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 | ||
Line 76: | Line 9: | ||
|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 | ||
Line 84: | Line 17: | ||
|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> | ||
Line 94: | Line 27: | ||
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) | ||
Line 106: | Line 39: | ||
|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]] | ||
Latest revision as of 20:01, 23 November 2019
Yamaha IT250 | |
Manufacturer | |
---|---|
Also called | IT250E, IT 250 E, IT 250 |
Production | 1978 - 1982 |
Class | Enduro |
Engine | 250cc single cylinder, two-stroke |
Bore / Stroke | 71.1mm x 71.1mm |
Compression ratio | 7.9:1 |
Top Speed | 68 mph (110 km/h) |
Horsepower | 10.06 HP (7.5 KW) @ 5500RPM |
Torque | 10.33 ft/lbs (14.0 Nm) @ 5500RPM |
Ignition | cdi |
Spark Plug | NGK B9EV '77 , '78 , '79 , '80 , '83 NGK B9EGV '81-82 |
Transmission | Gear box: 6-speed Final Drive: chain |
Final Drive | Chain: 520x104 ‘77[1] |
Front Sprocket | 13T ‘77[1] |
Rear Sprocket | 46T ‘77[1] |
Suspension | Front: conventional forks Rear: mono-x triangular swingarm |
Brakes | Front: expanding brake (drum brake). cable Rear: expanding brake (drum brake). mechanical link |
Front Tire | 3.00-21 '77 , '78 , '79 , '80 , '81-82 , '83 |
Rear Tire | 140/80-18 '83 6705 '80 , '81-82 4.50-18 '77 , '78 , '79 |
Wheelbase | 57.09 inches (1450 mm) |
Length | 86.81 inches (2205 mm) |
Width | 35.0 inches (889 mm) |
Seat Height | 36.42 inches (925 mm) |
Weight | 246.04 pounds (111.6 Kg) (dry), 95.3 kg (wet) |
Recommended Oil | Yamalube 10w-40 |
Fuel Capacity | 3.2 Gallon (12.11 Liters) |
Fuel Consumption | 3.92 liters/100 km (25.5 km/l or 60.01 mpg) |
Related | Yamaha IT125 Yamaha IT175 Yamaha IT200 Yamaha IT250 Yamaha IT350 Yamaha IT400 Yamaha IT425 Yamaha IT490 Yamaha IT500 Yamaha TT250 |
Manuals | Service Manual |
The Yamaha IT250 was a is a 175cc, 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[edit | edit source]
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[edit | edit source]
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[edit | edit source]
The bike has a 6-speed transmission. Power was moderated via the wet plate.
Chassis[edit | edit source]
It came with a -21 front tire and a -18 rear tire. Stopping was achieved via expanding brake (drum brake). cable in the front and a expanding brake (drum brake). mechanical link in the rear. The front suspension was a conventional forks while the rear was equipped with a mono-x triangular swingarm. The IT250 was fitted with a 3.2 Gallon (12.11 Liters) fuel tank. The bike weighed just 246.04 pounds (111.6 Kg). The wheelbase was 57.09 inches (1450 mm) long.
1980 - 1983 Yamaha IT 250[edit | edit source]
Based on the all-conquering 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[edit | edit source]
- L'exécutrice
- Lie mo zhe
- Empire of Ash
- Die Ludolfs - 4 Brüder auf'm Schrottplatz
- Skeeter
- Wonder Woman
See Also[edit | edit source]
References[edit | edit source]
- ↑ 1.0 1.1 1.2 2019 Western Power Sports Catalog. Western Power Sports. 2019.
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