9 types de motos les plus courants que vous devriez connaître
9 types de motos les plus courants que vous devriez connaître · 9. Cyclomoteur · 8. Trottinette · 7. Hors route · 6. Double sport · 5. Vélos Cafe Racer/ ...
Yamaha SR400
De nombreux motocyclistes suggèrent un modèle standard comme un excellent choix pour le premier vélo d'un tout nouveau cycliste. Certains, comme le toujours populaire <anchor>Yamaha SR400</anchor>, ont un style encore plus intemporel qui stimule quelques-unes des formes corporelles des croiseurs et des coureurs de café. D'autres, comme le HondaCB300R et aussi ses grands frères et sœurs, sont proches des vélos de sport dans leur style.
Yamaha SR400 & SR500 - Wikipedia
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## Contents

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- [1SR400](#SR400)
- [2SR500](#SR500)
- [3Notes](#Notes)
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# Yamaha SR400 & SR500

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Type of motorcycle

Yamaha SR400 & SR500[![](//upload.wikimedia.org/wikipedia/commons/thumb/b/bf/Yamaha_SR400.jpg/260px-Yamaha_SR400.jpg)](/wiki/File:Yamaha_SR400.jpg)

Yamaha SR400 at the 2009 [Tokyo Motor Show](/wiki/Tokyo_Motor_Show "Tokyo Motor Show")

Manufacturer[Yamaha Motor Company](/wiki/Yamaha_Motor_Company "Yamaha Motor Company")[Parent company](/wiki/Holding_company "Holding company")[Yamaha Corporation](/wiki/Yamaha_Corporation "Yamaha Corporation")Production1978−2021[\[1\]](#cite_note-1)AssemblyJapan: [Iwata](/wiki/Iwata,_Shizuoka "Iwata, Shizuoka"), [Shizuoka](/wiki/Shizuoka_Prefecture "Shizuoka Prefecture")[Class](/wiki/Types_of_motorcycles "Types of motorcycles")[Standard](/wiki/Types_of_motorcycles#Standard "Types of motorcycles")[Engine](/wiki/Motorcycle_engine "Motorcycle engine")499 cc (30.5 cu in) [4-stroke](/wiki/Four-stroke_engine "Four-stroke engine"), air-cooled, [SOHC](/wiki/SOHC "SOHC"), single-cylinder, 2-valve[Bore](/wiki/Bore_(engine) "Bore (engine)") / [stroke](/wiki/Stroke_(engine) "Stroke (engine)")87 mm × 84 mm (3.4 in × 3.3 in)[Compression ratio](/wiki/Compression_ratio "Compression ratio")9.0:1Top speedSR500: 146 km/h (91 mph)\[ _[citation needed](/wiki/Wikipedia:Citation_needed "Wikipedia:Citation needed")_\][Power](/wiki/Power_(physics) "Power (physics)")SR500: 23.5 kW (31.5 hp) @ 6,500 rpm[\[2\]](#cite_note-Yamaha-2)[Torque](/wiki/Torque "Torque")SR500: 36.3 N⋅m (26.8 lbf⋅ft) @ 5,500 rpm[\[2\]](#cite_note-Yamaha-2)[Ignition type](/wiki/Ignition_system "Ignition system")CDI[Transmission](/wiki/Motorcycle_transmission "Motorcycle transmission")5-speed [sequential manual](/wiki/Sequential_manual_transmission "Sequential manual transmission")[Frame type](/wiki/Motorcycle_frame "Motorcycle frame")Half-duplex cradle[Suspension](/wiki/Suspension_(motorcycle) "Suspension (motorcycle)")Front: 35 mm telescoping fork, 150 mm (5.9 in) travel

Rear: 105 mm (4.1 in) travel, 5-way adjustable preload[Brakes](/wiki/Brake "Brake")Hydraulic disc or mechanical drum, depending on model year[Tires](/wiki/Motorcycle_tyre "Motorcycle tyre")F: 3.50-19 or 3.50-18

R: 4.00-18[Rake](/wiki/Bicycle_and_motorcycle_geometry#Steering_axis_angle "Bicycle and motorcycle geometry"), [trail](/wiki/Bicycle_and_motorcycle_geometry#Trail "Bicycle and motorcycle geometry")27.5 deg, 117 mm (4.6 in)[Wheelbase](/wiki/Wheelbase "Wheelbase")1,405 mm (55.3 in)DimensionsL: 2,105 mm (82.9 in)

W: 845 mm (33.3 in)

H: 1,155 mm (45.5 in)

Seat height810 mm (32 in)WeightSR500: 158 kg (348 lb)[\[2\]](#cite_note-Yamaha-2) ( [dry](/wiki/Motorcycle_testing_and_measurement#Dry_weight "Motorcycle testing and measurement"))

Fuel capacity12 or 14 litres (2.6 or 3.1 imperial gallons; 3.2 or 3.7 US gallons)Oil capacity2.4 litres (2.5 US quarts)Fuel consumption4.8 L/100 km (59 mpg‑imp; 49 mpg‑US)\[ _[citation needed](/wiki/Wikipedia:Citation_needed "Wikipedia:Citation needed")_\]

The **Yamaha SR400** (1978–2021) and **SR500** (1978–1999) are [single-cylinder](/wiki/Single-cylinder_engine "Single-cylinder engine"), air-cooled, two-passenger [motorcycles](/wiki/Motorcycle "Motorcycle") manufactured in Japan by [Yamaha Motor Company](/wiki/Yamaha_Motor_Company "Yamaha Motor Company") as a street version of the [Yamaha XT500](/wiki/Yamaha_XT500 "Yamaha XT500"), with a [standard](/wiki/Motorcycle#Motorcycle_rider_postures "Motorcycle") riding posture and styling resembling the [Universal Japanese Motorcycles](/wiki/Universal_Japanese_Motorcycle "Universal Japanese Motorcycle") of the 1970s. The two models differ by their engines: the SR400 engine has a lower displacement, achieved with a different [crankshaft](/wiki/Crankshaft "Crankshaft") and shorter [piston stroke](/wiki/Piston_stroke "Piston stroke")[\[3\]](#cite_note-3)[\[4\]](#cite_note-Siegal-4) and both models feature only kickstarting, i.e., no electric starter.

The **SR400** had been marketed in the [Japanese Domestic Market](/wiki/Japanese_Domestic_Market "Japanese Domestic Market") (JDM) from 1978 to 2021 and was introduced to Europe, the Americas and Oceania in 2014. Its engine capacity complies with JDM 400 cc licensing restrictions.

The **SR500** was marketed in Asia and Oceania (1978–1999), North America (1978–1981); and Europe (1978–1983), and was not marketed in the Japanese market.

The SR was originally developed under the design credo "easy to use",[\[5\]](#cite_note-ankle-5) and when Yamaha's Technical Director wrenched his ankle while testing a prototype, easier starting became a priority—and Yamaha developed a decompression lever and sight glass system.[\[5\]](#cite_note-ankle-5)

The SR was styled by Atsushi Ishiyama with Yamaha presenting a pre-production prototype to US dealers in late 1975.[\[5\]](#cite_note-ankle-5) Ishiyama said of the bike's styling: "Our choice was to design the new SR500 with a strong family image and a strong link to our first four stroke, the XS 650 twin, which was also inspired by British design."[\[5\]](#cite_note-ankle-5)

## SR400

\[ [edit](/w/index.php?title=Yamaha_SR400_%26_SR500&action=edit&section=1 "Edit section: SR400")\]

[![](//upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Yamaha_SR400_2014_Engine_With_EVAP_Canister.JPG/170px-Yamaha_SR400_2014_Engine_With_EVAP_Canister.JPG)](/wiki/File:Yamaha_SR400_2014_Engine_With_EVAP_Canister.JPG) Yamaha SR400 (2014) fitted with an [EVAP canister](/wiki/EVAP "EVAP") to reduce emissions.

Yamaha has marketed the SR400 in the JDM since model year 1978, with a production hiatus for model years 2008–2009. Beginning with model year 2010, the SR400 had [fuel injection](/wiki/Fuel_injection "Fuel injection") and a catalyst muffler to comply with tighter emission restrictions. Yamaha began marketing the bike in Europe, Australia and the US in 2014.

The SR400 has an air-cooled 4-stroke single cylinder SOHC 2-valve engine with a [dry-sump](/wiki/Dry-sump "Dry-sump"), with the downtubes of the motorcycle's frame serving as the engine's oil reservoir and cooling system,[\[6\]](#cite_note-tillston-6) thereby eliminating the need for an external oil cooler, reducing engine pumping losses, and allowing increased ground clearance as well as reduced overall width. The bike's semi-double cradle frame uses high-strength steel.[\[6\]](#cite_note-tillston-6)

The SR400 had a kick-starter and no electric start. To aid with starting, the bike had a sight glass on the right side of the cylinder head indicating the optimal cylinder position for starting, as well as a decompressor lever on the left handlebar.[\[6\]](#cite_note-tillston-6)

The fuel injection system has a throttle position sensor on the throttle body; O2 sensor in the top of the exhaust header-pipe; temperature sensor; thermo unit at the upper rear of the cylinder head; and a lean angle sensor to interrupt the fuel injection pump, in case, for example, the bike is on its side. The air filter is a disposable oil-coated paper type held in place by the airbox cover. The electrical system has an automatic cut-out to stop the engine when left idling longer than 20 minutes. The exhaust system has an exhaust pipe coated with a nano-film to prevent discoloration[\[6\]](#cite_note-tillston-6) and includes a 3-way honeycomb-type catalytic converter to meet EU and US (50 state) emission requirements.[\[6\]](#cite_note-tillston-6)

The instrumentation includes a cable-driven analog speedometer and tachometer with a stainless steel bezel, fuel low-level indicator, engine-trouble warning, turn signal, neutral, and high beam light indicators. The left-side handlebar controls include hazard, horn, high and low beam control, flash-to-pass switch and turn indicator controls. The right side controls include the hazard light switch as well as the engine kill switch.

With 18" front and rear tires, the SR400 has spoked wheels with lightweight aluminium rims, front disc and rear drum brakes as well as a center stand, chromed fenders, headlight pod and grab bar.[\[6\]](#cite_note-tillston-6) A sealed [Valve Regulated Lead Acid (VRLA) battery](/wiki/VRLA_battery "VRLA battery") is located underneath the seat, on its side. Earlier models had [CDI ignition](/wiki/Capacitor_discharge_ignition "Capacitor discharge ignition"); post-2010 models have transistor controlled ignition (TCI).

## SR500

\[ [edit](/w/index.php?title=Yamaha_SR400_%26_SR500&action=edit&section=2 "Edit section: SR500")\]

The 1978–1979 US version of the SR500 had front and rear disc brakes while the 1980–1981 models had a front disc and rear drum brake, while the European 78–79 models had spoked wheels, front disc and rear drum brake. Cast aluminum wheels on US models (rear disk brake) for 78-79 were not tubeless applicable while (drum brake) for 80-81 were stamped tubeless applicable and so equipped. By the end of 1981, the SR500 was discontinued in the US market, while continuing in Europe and Japan. The model ended production in 1999.[\[4\]](#cite_note-Siegal-4)[\[7\]](#cite_note-7)

The SR500 employed a slightly modified version of its large single-cylinder from the [XT500/TT500](/wiki/Yamaha_XT500 "Yamaha XT500")[\[8\]](#cite_note-8)[\[9\]](#cite_note-9) and had electronic ignition as well as a handle bar mounted [compression release](/wiki/Compression_release "Compression release") lever to make kick starting much easier.[\[4\]](#cite_note-Siegal-4)[\[10\]](#cite_note-Product-10)

[![](//upload.wikimedia.org/wikipedia/commons/thumb/8/85/Yamaha_SR500_side.jpg/220px-Yamaha_SR500_side.jpg)](/wiki/File:Yamaha_SR500_side.jpg) Yamaha SR500[![](//upload.wikimedia.org/wikipedia/commons/thumb/0/08/Yamaha_SR_500_2.JPG/220px-Yamaha_SR_500_2.JPG)](/wiki/File:Yamaha_SR_500_2.JPG) Modified 1985 Yamaha SR500 café racer

The SR500 won Moto of the Year award twice from _Motorrad_, the German motorcycling magazine.[\[6\]](#cite_note-tillston-6)

## Notes

\[ [edit](/w/index.php?title=Yamaha_SR400_%26_SR500&action=edit&section=3 "Edit section: Notes")\]

01. **[^](#cite_ref-1)**["ヤマハ、国内向け「Sr400」を生産終了"](https://car.watch.impress.co.jp/docs/news/1301520.html). 21 January 2021.
02. ^ [_**a**_](#cite_ref-Yamaha_2-0) [_**b**_](#cite_ref-Yamaha_2-1) [_**c**_](#cite_ref-Yamaha_2-2)["1978 SR500"](http://global.yamaha-motor.com/showroom/cp/collection/sr500/). _Corporate Information_. Yamaha Motor Co., Ltd. Retrieved 17 July 2013. The SR500 was a model that brought the know-how of the 4-stroke enduro model XT500 to an on-road sport model.
03. **[^](#cite_ref-3)**["Another Japanese Gem - The Yamaha SR400 (SR500)"](http://www.returnofthecaferacers.com/2007/09/another-japanese-jem-yamaha-sr400-sr500.html). Return of the Cafe Racers. September 2007. Retrieved 17 July 2013. Aesthetically the bike hasn't changed much since its conception and as such oozes retro classic appeal in todays market.
04. ^ [_**a**_](#cite_ref-Siegal_4-0) [_**b**_](#cite_ref-Siegal_4-1) [_**c**_](#cite_ref-Siegal_4-2)Siegal, Margie (March–April 2006). ["1980 Yamaha SR500"](http://www.motorcycleclassics.com/motorcycle-reviews/2006-03-01/split-personality.aspx). _Motorcycle Classics_. Retrieved 18 July 2013. Durable and easy to maintain, the Yamaha SR500 became a cult favorite among classic motorcycle fans.
05. ^ [_**a**_](#cite_ref-ankle_5-0) [_**b**_](#cite_ref-ankle_5-1) [_**c**_](#cite_ref-ankle_5-2) [_**d**_](#cite_ref-ankle_5-3)["THEY DID IT THEIR WAY: WHEN THE BIG THUMPER RETURNED"](http://www.yamaha-motor.eu/designcafe/en/archive/archived-articles/index.aspx?view=article&id=441198&segment=&archive=false&page=2). Yamaha Motor Corporation, Design Cafe.
06. ^ [_**a**_](#cite_ref-tillston_6-0) [_**b**_](#cite_ref-tillston_6-1) [_**c**_](#cite_ref-tillston_6-2) [_**d**_](#cite_ref-tillston_6-3) [_**e**_](#cite_ref-tillston_6-4) [_**f**_](#cite_ref-tillston_6-5) [_**g**_](#cite_ref-tillston_6-6)["The iconic SR400, 35 years heritage"](http://www.yamaha-motor.eu/eu/news/index.aspx?id=556871). Yamaha Press Release, MCNews.com, 04-11-2013.
07. **[^](#cite_ref-7)**Smith, Jerry (8 April 2013). ["2013 Yamaha SR400 Anniversary Edition"](http://blogs.motorcyclistonline.com/2013-yamaha-sr400-anniversary-edition-32433.html). _Motorcyclist Online_. Retrieved 17 July 2013. Yamaha's SR500, a modern incarnation of the legendary British singles of old, debuted in the US in 1978, but slunk off the stage a few years later, thanks to the riding public's apathy toward a slow, vibey bike that required a master's degree in kickology to start.
08. **[^](#cite_ref-8)**["Highway Motorcycles -- Exhaust Emission Standards"](http://www.epa.gov/otaq/standards/light-duty/motorcycles.htm). _Office of Transportation and Air Quality_. US Environmental Protection Agency. Retrieved 21 July 2013.
09. **[^](#cite_ref-9)**["California: Motorcycles: Emissions"](http://transportpolicy.net/index.php?title=California:_Motorcycles:_Emissions). Transportpolicy.net. Retrieved 21 July 2013.
10. **[^](#cite_ref-Product_10-0)**["Product Planner Profile: Masahiro Inumaru"](http://www.yamaha-motor.eu/designcafe/en/about-design/development/index.aspx?view=article&id=441475). _Yamaha Design Cafe English_. Yamaha Motor Europe. 1 April 2002. Retrieved 18 July 2013. His first project was the SR 500 and the TT500.

## References

\[ [edit](/w/index.php?title=Yamaha_SR400_%26_SR500&action=edit&section=4 "Edit section: References")\]

- ["Classics: SR500: Model Evolution"](http://www.yamaha-motor.eu/designcafe/en/about-bikes/classics/index.aspx?segment=Classics&view=article&id=441197). _Yamaha Design Cafe English_. Yamaha Motor Europe. 1 March 2003. Retrieved 18 July 2013. Major Model Changes from 1978 until 1999.

## External links

\[ [edit](/w/index.php?title=Yamaha_SR400_%26_SR500&action=edit&section=5 "Edit section: External links")\]

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