Yamaha SR400: review, history, specs
Class: classic
Production: 1978-2021
Related: Yamaha SR500
| Models | ||
|---|---|---|
| Yamaha SR400
(Japan) 1978-1984 |
Yamaha SR400
(Japan) 1985-2000 |
Yamaha SR400
(Japan, Europe, North America) 2001-2020 |
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| Models | |
|---|---|
| Yamaha SR400 Final Edition
(Japan) 2021 |
Yamaha SR400 Final Edition Limited
(Japan) 2021 |
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History
| History | ||
|---|---|---|
| Year | Country | Name / Frame / Engine |
| 1978 | Japan | Name: Yamaha SR400
Code: 2H60 |
| 1983 | Japan | Name: Yamaha SR400
Code: 34F |
| 1984 | Japan | Name: Yamaha SR400
Code: 34F |
| 1985 | Japan | Name: Yamaha SR400
Code: 1JR0 |
| 1992 | Japan | Name: Yamaha SR400S; Yamaha SR400C
Code: 3HT4; 3HT3 |
| 1993 | Japan | Name: Yamaha SR400
Code: 3HT5 |
| 1994 | Japan | Name: Yamaha SR400
Code: 3HT6 |
| 1995 | Japan | Name: Yamaha SR400S
Code: 3HT7 |
| 1997 | Japan | Name: Yamaha SR400
Code: 3HT8 |
| 1998 | Japan | Name: Yamaha SR400
Code: 3HT9 |
| 1999 | Japan | Name: Yamaha SR400
Code: 3HTA |
| 2000 | Japan | Name: Yamaha SR400
Code: 3HTB |
| 2001 | Japan | Name: Yamaha SR400
Code: 3HTC |
| 2002 | Japan | Name: Yamaha SR400
Code: 3HTE; 3HTD |
| 2003 | Japan | Name: Yamaha SR400
Code: 3HTH, 3HTG, 3HTF |
| 2004 | Japan | Name: Yamaha SR400
Code: 3HTJ |
| 2005 | Japan | Name: Yamaha SR400
Code: 3HTK, 3HTL |
| 2006 | Japan | Name: Yamaha SR400
Code: 3HTN, 3HTM |
| 2007 | Japan | Name: Yamaha SR400
Code: 3HTP |
| 2008 | Japan | Name: Yamaha SR400
Code: 3HTS |
| 2010 | Japan | Name: Yamaha SR400
Code: 3HTR |
| 2012 | Japan | Name: Yamaha SR400
Code: 3HTU |
| 2013 | Japan | Name: Yamaha SR400
Code: 3HTV |
| 2014 | Japan, Europe | Name: Yamaha SR400
Code: 3HTW, 2RD1 |
| 2015 | North America | Name: Yamaha SR400
Code: 2RD2, 2RD3 |
| 2016 | Japan, Europe, North America | Name: Yamaha SR400
Code: 3HTY, 3HTX, 2RDB |
| 2017 | Japan, North America | Name: Yamaha SR400
Code: B0H1, 2RDE, 2RDD |
| 2018 | Japan, North America | Name: Yamaha SR400 |
| 2019 | Japan | Name: Yamaha SR400 |
| 2020 | Japan | Name: Yamaha SR400 |
| 2021 | Japan | Name: Yamaha SR400 Final Edition + Limited |
Specifications
Yamaha SR400: specs
| Specifications | ||
|---|---|---|
| DIMENSIONS | Overall length | 2085 mm / 82,1 in |
| Overall width | 750 mm / 29,5 in | |
| Overall height | 1095 mm / 43,1 in | |
| Seat height | 785 mm / 30,9 in | |
| Wheelbase | 1410 mm / 55,5 in | |
| Ground clearance | 130 mm / 5,1 in | |
| Dry weight | ||
| Curb (wet) weight | 168 kg / 370 lbs – SR400 (2001-2008)
174 kg / 384 lbs – SR400 (2010+) | |
| FRAME | Type | Semi double cradle (steel) |
| Front suspension, travel | 35 mm telescopic fork, 150 mm / 5,9 in | |
| Rear suspension, travel | Swingarm with twin-shock (adjustable spring pre-load), 105 mm / 4,1 in | |
| Front tire size | 90/100-18M/C 54S – SR400 (1985+) | |
| Rear tire size | 110/90-18M/C 61S – SR400 (1985+) | |
| Front brake | Drum – SR400 (1985-2000)
Single disc, 298 mm, 2-piston caliper – SR400 (2001+) | |
| Rear brake | Drum | |
| Fuel capacity | 12,0 l / 3,17 US gal (reserve – 2,2 l) | |
| Trail | 111 mm / 4,4 in | |
| Fuel economy / consumption | 3,37 l / 100 km (70 US mpg)[1] | |
| ENGINE | Type | Air-cooled 4-stroke |
| Cylinder arrangement | Single cylinder | |
| Bore & Stroke | 87,0 x 67,2 mm | |
| Displacement | 399 cm³ (24,3 cu in) | |
| Compression ratio | 8.5:1 | |
| Valve train | Chain driven SOHC, 2 valves | |
| Max. power | 27,0 hp (19,8 kW) / 7000 rpm (SR400 2001)
24,0 hp (18 kW) / 7000 rpm - SR400 (2014+) | |
| Max. torque | 29,0 Nm (3,0 kg-m) / 6500 rpm (SR400 2001)
28,0 Nm (3,0 kg-m) / 3000 rpm - SR400 (2014+) | |
| Acceleration 0 to 100 km/h (0-60 mph) | 11,16 sec.[2] | |
| Top speed | 130 kmh / 81 mph[3] | |
| CARBURETION SYSTEM | Type | Carburetor, 1x – SR400 (1978-2008)
Fuel Injection, 1x – SR400 (2010+) |
| ID | ||
| DRIVE TRAIN | Clutch | Wet, multi-plate, cable operated |
| Transmission | 5-speed | |
| Final drive | Chain | |
| Primary reduction | 2.567 | |
| Final reduction | ||
| Gear ratio
I II III IV V |
1.556 1.190 0.917 0.778 | |
| ELECTRICAL | Ignition | CDI – SR400 (1978-2008)
TCI – SR400 (2010+) |
| Alternator | A.C. magneto 14V 22.3A at 5000 rpm | |
| Battery capacity | 12V-2.5Ah | |
Images
Yamaha SR400: images, gallery.
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Videos
Yamaha SR400: video.
Manuals
Yamaha SR400: manuals, parts, microfiches.