Yamaha says its classic big single has a genuine heritage and pureness of design that sets it apart from some other retro models.
Yammie claims the SR400 is the real thing, and with an authentic engine and chassis specification and original kick start mechanism, this twin-shock thumper is aimed at the many riders who are looking to rediscover the soul of motorcycling.
For many riders, the character, soul and image of a machine is far more important than its acceleration figures or potential lean angle. Fundamental qualities such as simplicity, ease of use and timeless design are more important to the SR400 owner. With its relaxed torque, light and agile chassis and sheer mechanical beauty, the SR400 is designed to appeal to riders looking for a motorcycle with a real heritage and character, and one which fully engages its owner.
The SR400 also offers many possibilities for those riders who want to customise their machine, whether that involves adding a few bolt-on parts or going the whole way and creating a café racer, street scrambler or bobber.
To celebrate Yamaha's 60th anniversary year, the SR400 will be offered in the 60th anniversary yellow livery pictured here. It's limited to only 10 units in Australia, making it highly collectable in years to come.
At the soul of the SR400 is an air-cooled four-stroke single-cylinder SOHC two-valve engine which is technically almost identical to the original design, with the major difference is the use of a new fuel injection system, which allows the bike to conform with current emissions regulations, and also makes the SR400 easier to start than the original model.
The SR400 is equipped with traditional upright front forks that give 150mm of wheel travel for a smooth ride and easy steering. At the rear end this classic big single is fitted with a proven twin shock system that offers 100mm of suspension movement.
The engineers wanted to ensure that the current model is true to its original character, and so the only way to start the new SR400 is to kick it. The SR400 runs an indicator on the right side of the cylinder head that shows when the piston is in the best position for starting, and a decompressor lever on the left side of the handlebar assists in starting the engine smoothly.
Specs:
Engine: Four-stroke, air-cooled, SOHC, two-valves
Displacement: 399cc
Bore x stroke: 87.0 mm x 67.2 mm
Compression ratio: 8.5:1
Lubrication system: Dry sump
Engine management system: EFI
Ignition system: TCI
Starter system: Kick
Transmission: Constant mesh, five-speed
Final drive: Chain