Naked Motorcycles
1990Yamaha XS 400 DOHC
19 fields on record
The 1990 Yamaha XS 400 DOHC is a lightweight sport-touring middleweight ideal for new riders and commuters seeking reliable everyday performance. Its air-cooled twin engine delivers modest but accessible power, while the compact 187kg frame ensures nimble handling. Known for excellent fuel efficiency and dependable engineering, it excels as an affordable entry-level sportbike.
- Capacity
- 399.0 ccm
- Engine
- Parallel Twin
- Gearbox
- 6-speed
- Wet weight
- 187.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 27.0 HP (19.9 kW) @ 8000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's best suited for light commuting, weekend backroad rides, and easy sport-touring rather than serious speed or distance work.
- Built for
- The air-cooled DOHC twin has a classic, understated charm that rewards smooth, relaxed riding over aggressive throttle use.
- Not ideal for
- This is not the bike for riders seeking high-speed thrills, off-road capability, or serious long-haul touring comfort with a passenger.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 399.0 ccm
- Power
- 27.0 HP (19.9 kW) @ 8000 RPM
- Engine type
- Parallel Twin
- Power/weight ratio
- 0.1444 HP/kg (wet)
- Bore x stroke
- 69.0 x 53.4 mm
- Compression
- 9.7:1
- Cooling system
- Air
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 143.0 km/h (88.9 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Expanding brake
- Front tyre
- 3.00-18
- Rear tyre
- 4.00-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1982 | 1984 | 1986 | 1988 | 1990 |
|---|---|---|---|---|---|
| Capacity | 399 cc | 399 cc | 399 cc | 399 cc | 399 cc |
| Fuel capacity | 18 L | 18 L | 18 L | 18 L | 18 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Yamaha XS 400 DOHC?
The 1990 Yamaha XS 400 DOHC has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Yamaha XS 400 DOHC have?
The 1990 Yamaha XS 400 DOHC has a Power of 27.0 HP (19.9 kW) @ 8000 RPM.
How many gears does the Yamaha XS 400 DOHC have?
The 1990 Yamaha XS 400 DOHC has a Gearbox of 6-speed.
How much does the Yamaha XS 400 DOHC weigh?
The 1990 Yamaha XS 400 DOHC has a Wet weight of 187.0 kg (412.3 pounds).
Shop this bike
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The 1990 Yamaha XS 400 DOHC is a classic motorcycle with a cult following. Its sleek design, reliable performance, and comfortable ride make it a sought-after vintage bike for collectors and enthusiasts. The XS 400 DOHC's 399cc engine delivers smooth power and excellent fuel efficiency, making it a practical choice for both urban and highway riding. With its timeless styling and durable build quality, this Yamaha model continues to impress riders and maintain its value in the used motorcycle market.
If you're in the market for a retro bike with a touch of nostalgia, the 1990 Yamaha XS 400 DOHC is a fantastic option. Its reliable performance, comfortable ride, and classic design make it a timeless choice for motorcycle enthusiasts. Whether you're a collector looking for a piece of motorcycle history or a rider in search of a dependable vintage bike, the XS 400 DOHC is sure to turn heads and deliver an enjoyable riding experience.
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