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| {{Motorcycle
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| |name = Yamaha RD400
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| |photo= 1976-Yamaha-1976-RD400C-Red-1126-0.jpg
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| |aka = RD400C, RD 400 C, RD 400
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| |manufacturer = Yamaha
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| |parent_company =
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| |production = 1976 - 1979
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| |model_year =
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| |predecessor =
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| |successor =
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| |class = Classic
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| |engine = twin, two-stroke
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| |bore_stroke = 64.0mm x 62.0mm
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| |compression = 6.2:1
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| |top_speed = 109 mph (175 km/h)
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| |power = 42.11 HP (31.4 KW) @ 7500RPM
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| |torque =
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| |ignition =
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| |spark_plug = {{sparkplug|NGK B8ES}} '76-79
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| |battery = {{battery|YUASA 12N5-5A-3B}} '76-79
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| |transmission = Gear box: 6-speed <br>
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| Final Drive: [[chain]] <br>
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| Clutch: Wet multi-plate <br>
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|
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| |final_drive= {{chain|530x96}}
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| |front_sprocket= 16T
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| |rear_sprocket= 37T
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| |frame =
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| |suspension =Front: Telescopic Forks <br>
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| Rear: Swingarm
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| |brakes =Front: single disc <br>Rear: single disc
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| |front_tire = {{tire|3.00-18}}
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| |rear_tire = {{tire|3.50-18}}
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| |rake_trail =
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| |wheelbase = 52.01 inches (1321 mm)
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| |length = 78.5 inches (1994 mm)
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| |width = 29.88 inches (759 mm)
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| |height =
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| |seat_height = 31.5 inches (800 mm)
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| |dry_weight =
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| |wet_weight = 175.0 kg
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| |fuel_capacity = 4.36 Gallon (16.50 Liters)
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| |oil_capacity =
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| |recommended_oil= Yamalube 10w-40
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| |fuel_consumption =
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| |turning_radius =
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| |related = [[Yamaha RD250LC]], [[Yamaha RD200]], [[Yamaha RD250]], [[Yamaha RD350]], [[Yamaha RD400]]
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|
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| |competition =
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| }}
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| The '''[[Yamaha]] RD400''' was a twin, two-stroke Classic [[motorcycle]] produced by [[Yamaha]] between 1976 and 1979. It could reach a top speed of 109 mph (175 km/h). Claimed [[horsepower]] was 42.11 HP (31.4 KW) @ 7500 RPM.
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|
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| ==Engine==
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| The engine was a [[air cooled]] twin, two-stroke. A 64.0mm [[bore]] x 62.0mm [[stroke]] result in a [[displacement]] of just 399.0 cubic centimeters. Fuel was supplied via a membrane.
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|
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| ==Drive==
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| The bike has a 6-speed transmission. Power was moderated via the Wet multi-plate.
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|
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| ==Chassis==
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| It came with a 3.00-18 front [[tire]] and a 3.50-18 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a Telescopic Forks while the rear was equipped with a Swingarm. The RD400 was fitted with a 4.36 Gallon (16.50 Liters) fuel tank. The wheelbase was 52.01 inches (1321 mm) long.
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| {{clear}}
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| ==1976 RD400-C== | | ==1976 RD400-C== |
| <gallery mode="packed-hover">
| | [[Image:1976-Yamaha-RD400C-Green-0.jpg|left|thumb|1976 Yamaha RD400C in Green]][[Image:1976-Yamaha-RD400C-Green-1.jpg|left|thumb|1976 Yamaha RD400C in Green]][[Image:1976-Yamaha-RD400C-Green-2.jpg|left|thumb|1976 Yamaha RD400C in Green]][[Image:1976-Yamaha-RD400C-Green-3.jpg|left|thumb|1976 Yamaha RD400C in Green]][[Image:1977-Yamaha-RD400-French Blue-0.jpg|left|thumb|1977 Yamaha RD400 in French Blue]][[Image:1977-Yamaha-RD400-French Blue-1.jpg|left|thumb|1977 Yamaha RD400 in French Blue]] |
| File:1976-Yamaha-RD400C-Green-0.jpg|left|thumb|1976 Yamaha RD400C in Green
| | <br style="clear: left"/> |
| File:1976-Yamaha-RD400C-Green-1.jpg|left|thumb|1976 Yamaha RD400C in Green
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| File:1976-Yamaha-RD400C-Green-2.jpg|left|thumb|1976 Yamaha RD400C in Green
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| File:1976-Yamaha-RD400C-Green-3.jpg|left|thumb|1976 Yamaha RD400C in Green
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| File:1976-Yamaha-1976-RD400C-Red-1126-0.jpg|left|thumb|1976 Yamaha 1976 RD400C in Red
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| File:1976-Yamaha-1976-RD400C-Red-1126-1.jpg|left|thumb|1976 Yamaha 1976 RD400C in Red
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| File:1976-Yamaha-1976-RD400C-Red-1126-2.jpg|left|thumb|1976 Yamaha 1976 RD400C in Red
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| File:1976-Yamaha-1976-RD400C-Red-1126-3.jpg|left|thumb|1976 Yamaha 1976 RD400C in Red
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| File:1976-Yamaha-1976-RD400C-Red-1126-4.jpg|left|thumb|1976 Yamaha 1976 RD400C in Red
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| </gallery>
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| ==1977 RD400==
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| <gallery mode="packed-hover">
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| File:1977-Yamaha-RD400-French-Blue-0.jpg|left|thumb|1977 Yamaha RD400 in French Blue
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| File:1977-Yamaha-RD400-French-Blue-1.jpg|left|thumb|1977 Yamaha RD400 in French Blue
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| File:1977-Yamaha-RD400-Blue-3400-0.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-3400-1.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-0.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-1.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-2.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-3.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-4.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-5.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Blue-4900-7.jpg|left|thumb|1977 Yamaha RD400 in Blue
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| File:1977-Yamaha-RD400-Red-7548-0.jpg|left|thumb|1977 Yamaha RD400 in Red
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| File:1977-Yamaha-RD400-Red-7548-1.jpg|left|thumb|1977 Yamaha RD400 in Red
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| </gallery>
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| ==1978 RD400== | | ==1978 RD400== |
| <gallery mode="packed-hover">
| | [[Image:1978-Yamaha-RD400-Silver-0.jpg|left|thumb|1978 Yamaha RD400 in Silver]][[Image:1978-Yamaha-RD400-Silver-1.jpg|left|thumb|1978 Yamaha RD400 in Silver]] |
| File:1978-Yamaha-RD400-Silver-0.jpg|left|thumb|1978 Yamaha RD400 in Silver
| | <br style="clear: left"/> |
| File:1978-Yamaha-RD400-Silver-1.jpg|left|thumb|1978 Yamaha RD400 in Silver
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| File:1978-Yamaha-RD400-Silver-0.jpg|left|thumb|1978 Yamaha RD400 in Silver
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| File:1978-Yamaha-RD400-Silver-1.jpg|left|thumb|1978 Yamaha RD400 in Silver
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| File:1978-Yamaha-RD400-Silver-2.jpg|left|thumb|1978 Yamaha RD400 in Silver
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| File:1978-Yamaha-RD400-Silver-3.jpg|left|thumb|1978 Yamaha RD400 in Silver
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| File:1978-yamaha-rd400-0.jpg|1978 Yamaha RD400
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| File:1978-yamaha-rd400-1.jpg|1978 Yamaha RD400
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| File:1978-yamaha-rd400-2.jpg|1978 Yamaha RD400
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| File:1978-yamaha-rd400-3.jpg|1978 Yamaha RD400
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| File:1978-yamaha-rd400-4.jpg|1978 Yamaha RD400
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| </gallery> | |
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| ==1979==
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| <gallery mode="packed-hover">
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| File:1979-Yamaha-RD400-White-7374-0.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-1.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-2.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-3.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-4.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-5.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-6.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| File:1979-Yamaha-RD400-White-7374-7.jpg|left|thumb|1979 Yamaha RD400 Daytona Special in White
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| </gallery>
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| | The model shown below is definitely NOT a 1979 RD400F Daytona Special. The tank and side covers are from either a 1976, 1977 or 1978 model; the seat/tail section is aftermarket, as are the DG Expansion Chamber exhaust. The 1979 RD400F Daytona stock bodywork was white, and distinctively shaped differently from prior year RD400 models. |
| | The cylinder head on the below bike is also from a prior year; the 1979 head was a one-piece, with a front havig a ram-air look which was taller than the back, unlike the flat shape heads of the earlier models. The graphics on the below model are also from the non-U.S. (European) market model(s). |
| | ==NOT a 1979== |
| | [[Image:1979-Yamaha-RD400-Yellow-0.jpg|left|thumb|1979 Yamaha RD400 in Yellow]][[Image:1979-Yamaha-RD400-Yellow-1.jpg|left|thumb|1979 Yamaha RD400 in Yellow]][[Image:1979-Yamaha-RD400-Yellow-2.jpg|left|thumb|1979 Yamaha RD400 in Yellow]][[Image:1979-Yamaha-RD400-Yellow-3.jpg|left|thumb|1979 Yamaha RD400 in Yellow]][[Image:1979-Yamaha-RD400-Yellow-4.jpg|left|thumb|1979 Yamaha RD400 in Yellow]][[Image:1979-Yamaha-RD400-Yellow-5.jpg|left|thumb|1979 Yamaha RD400 in Yellow]] |
| | <br style="clear: left"/> |
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| *Last year exported to US. | | *Last year exported to US. |
|
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| ==1976 - 1980 Yamaha RD 400==
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| <gallery mode="slideshow">
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| File:yamaha-rd400-1976-1980-2.jpg|600px|1976 - 1980 Yamaha RD 400
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| File:yamaha-rd400-1976-1980-1.jpg|600px|1976 - 1980 Yamaha RD 400
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| File:yamaha-rd400-1976-1980-0.jpg|600px|1976 - 1980 Yamaha RD 400
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| </gallery>
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|
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| The Yamaha RD 400 has already become a classic in its own time. Fully equipped with speedometer, tachometer, hydraulically operated disc brakes on front and rear.
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| ==In Media==
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| * [https://motopixel.org/pixel/lao-jia-lao-nu-lao-shang-lao#yamaha-rd400 Lao jia lao nu lao shang lao]
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| * [https://motopixel.org/pixel/game-of-death#yamaha-rd400 Game of Death]
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| * [https://motopixel.org/pixel/everybody-wants-some#yamaha-rd400 Everybody Wants Some!!]
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| * [https://motopixel.org/pixel/province-77#yamaha-rd400 Province 77]
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| ==See Also==
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| *[[Yamaha RD200]]
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| *[[Yamaha RD250]]
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| *[[Yamaha RD350]]
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| ==External Links== | | ==External Links== |
| *[http://www.yamaha-rd.com/forum/index.php Yamaha RD Forum] | | *[http://www.yamaha-rd.com/forum/index.php Yamaha RD Forum][[Category:Image rename needed]] |
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| ==References==
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| {{reflist}}
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| {{motorcycle-stub}}
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| {{Yamaha}}
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| [[Category:Yamaha motorcycles|RD400]] | |
| [[Category:Yamaha RD Series|Yamaha RD Series]]
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| [[Category:1970s motorcycles]]
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| [[Category:Street motorcycles]]
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| [[Category:400cc displacement motorcycles]]
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| [[Category:400cc 2-stroke motorcycles]]
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| [[Category:Twin cylinder motorcycles]]
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| [[Category:Twin cylinder 2-stroke motorcycles]]
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| [[Category:2-stroke motorcycles]]
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| [[Category:Piston Inlet Port motorcycles]]
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| [[Category:Yamaha RD series]]
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| [[Category:Classic motorcycles]]
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| [[Category:1970s motorcycles]]
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