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With their relaxed torsion output, slim and agile chassis style and classic styling, the Japanese-market SR400 and European-market SR500 became firm favourites with enthusiasts World Health Organization were yearning for an easy machine that captured the terribly spirit of sports cycling. In several European countries together with Germany, Oesterreich and European nation, teams of SR500 homeowners fashioned enthusiasts’ clubs, several of that still run to the present day. To underline its charm, the SR500 went on to win consecutive ‘Moto of the Year’ awards from Germany’s Motorrad magazine – one in every of the best circulation bike titles in Europe. throughout an equivalent amount the bike was establishing a cult following in Europe and Japan, with several SR models being two-handed down from father to son.

Enduring charm since 1978

Meanwhile, in Japan, legislation about the bike licensing system within the middle Nineteen Seventies had created demand for 400cc models, so the SR400 became a high merchant in its home market. just about clone of the SR500 however running with a shorter stroke to attain a capability of 400cc, the SR400 has continuing to draw in large interest in Japan over the last thirty five years, with thousands of householders and enthusiasts turning up to SR rallies throughout the country.

What is conjointly attention-grabbing is that quite half the homeowners of the SR400 in Japan ar younger than the bike they ride! Users born when 1978 currently conjure the bulk of householders in Japan, that demonstrates clearly that this unchanged bike has an everlasting charm with the newer generation of riders.

The come back of a legend

For 2014 the come back of the SR can spearhead Yamaha’s growing Sport Heritage line up, that offers today’s riders the chance to expertise the enjoyment and pleasure related to less complicated and additional ancient styles.

Yamaha’s classic huge single includes a real heritage and status of style that sets it except for another ‘retro’ models. There is little question that the SR400 is that the authenticity, ANd with an authentic engine and chassis specification and original starter motor mechanism, this magnetic twin-shock thumper is aimed toward the various riders World Health Organization ar trying to discover the terribly soul of cycling.

For many riders, the character, soul and image of a machine is way additional vital than its 0-100km/h acceleration figures or potential lean angle. Having been spoken with the prepared convenience of high performance motorcycles all around them, AN increasing variety of today’s riders have determined that what matters to them ar the basic qualities like simplicity, simple use and unchanged style. With its relaxed torsion, light-weight and agile chassis and sheer mechanical beauty, the SR400 is intended to charm to those riders World Health Organization ar yearning for a bike with a true heritage and character, and one that absolutely engages its owner.

In addition to its appealing character and simple performance, the SR400 conjointly offers several potentialities for those riders World Health Organization wish to customise their machine, whether or not that involves adding some bolt-on components or going the total means and making a café racer, street scrambler or float.

By providing a come back to the basic values of biking, and inculcation a replacement pride of possession with the rider, the SR400 is prepared to form friends with an entire new generation of householders that were born when the bike created its original debut some thirty five years agone.
Ideal for personalisation

The interest in customization is growing, and plenty of of today's riders ar trying to form their own distinctive bike by victimisation special components. With its twin shock chassis and single cylinder cool engine, the SR400 is that the ideal start line for any customization project.

With its easy style, this unchanged bike is remodeled into a café racer, float or street scrambler, permitting the owner to form his or her own distinctive special.
ENGINE

Air-cooled 4-stroke single-cylinder engine

With its pulsing power delivery, throbbing exhaust note, sturdy physical presence and mechanical simplicity, the massive single holds a special place within the hearts of motorcyclists everywhere the globe.

At the terribly soul of the SR400 is AN cool 4-stroke single cylinder SOHC 2-valve engine that is technically virtually clone of the first style, with some exceptions.

The SR400 runs with a bore x stroke of 87mm x sixty two.7mm and a compression magnitude relation of eight.5:1, and this well established formula offers a wonderful torsion output that permits the SR400 rider to accelerate powerfully from low revs while not having to downshift. conjointly contributory to the SR’s healthy torsion output could be a large-capacity air filter, similarly as a giant 47mm valve and optimized regulator mass, that work along to convey the SR400 an easy and relaxed running character.

Fuel injection for straightforward beginning and sensible economy

The major distinction between the first engine and therefore the converted powerplant is that the use of a replacement fuel injection system system, that permits the bike to adapt with current emissions laws, and conjointly makes the SR400 easier to begin than the first model.

This compact and straightforward new fuel injection system unit delivers sleek engine running in an exceedingly sort of riding conditions, and it occupies an equivalent house because the original mechanical device to keep up the first appearance of the engine. Another advantage of this new fuel injection system system is that it ensures glorious fuel economy, permitting the rider to attain optimum vary from the 12-litre fuel tank.
Easy kickstarting

Our engineers wished to confirm that the 2014 model is faithful its original character, so the sole thanks to begin the new SR400 is to kick it! Riders World Health Organization could have closely-held a resourceful SR400 or SR500 can keep in mind that kickstarting the older models needed one thing of a special technique that may take a while to master.

However, the nice news for the new generation of SR400 homeowners – and conjointly for older riders World Health Organization is also returning to the present Yamaha huge single – is that the new fuel injection system system ensures abundant easier beginning. The bike currently runs with a new designed electronic transistor mechanism that generates a more robust spark that conjointly helps once beginning the bike up. AN indicator on the proper facet of the plate shows once the piston is within the best position for beginning, and a decompressor lever on the left facet of the handlebars supports the rider in beginning the engine swimmingly.

Beautifully finished cool engine

As well as its relaxed and simple torsion delivery, another everlasting attraction of this engine is its sheer mechanical beauty. With its massive air-cooling fins, shiny crankcases and graciously curved  piping, this huge single could be a classic style in each sense of the word. In AN era once several engines ar hidden behind fairings, the sight of the SR400’s huge cool engine could be a joy to see.

To prevent discolouration of the big-bore piping its exterior surface has been treated with a special nano-film coating, whereas the polished engine cases feature a clear-coated buff end to keep up the gleaming appearance of this classic powerplant.

3-way catalyser with atomic number 8 device

Hidden within the SR400’s chrome plated muffler could be a 3-way honeycomb-type catalyser coated with Pt and alternative precious metals, and this technique – along with the new fuel injection system system – permits the cool single cylinder engine to exceed current EU emissions laws.

    400cc cool 4-stroke single cylinder engine
 easy and effective SOHC 2-valve style
    Bore x stroke 87mm x sixty two.7mm
    8.5:1 compression magnitude relation
    Relaxed torsion for straightforward riding
    Compact and straightforward fuel injection system system
 glorious economy with established dependableness
    Kick to begin system
    Decompressor and piston position indicator for straightforward kick starts
    Dry sump lubrication with oil carried within the frame
    Large-capacity air filter
    Easy-action clutch lever
 electronic transistor ignition
    Chrome-plated exhaust with 3-way catalyser

CHASSIS
Tubular high tensile steel semi-double cradle frame

Staying fully faithful the first layout, the 2014 SR400 is supplied with a compact and slimline semi-double cradle frame that dead enhances the character of the single-cylinder engine. This established style is factory-made from hollow high tensile steel that provides the optimum balance of strength, rigidity and weight, giving AN agile feel and simple handling character.
Oil in frame

The SR400’s frame has been designed to hold the engine oil that runs through the most downtube and into the engine, and this oil-in-frame style offers variety of benefits over a wet sump system. Pumping losses among the engine ar reduced, and since there's no would like for AN oil sump to a lower place the engine, the SR400’s ground clearance is higher. This style conjointly permits for a slimmer body, which provides lots of potential choices for riders World Health Organization wish to create their own custom bike.
Plush front and rear suspension systems

The SR400 is supplied with ancient upright front forks that offer 150mm of wheel travel for a sleek ride and simple steering. At the ass this classic huge single is fitted with a established twin shock system that provides 100mm of suspension movement. along with the well-padded twin seat, the sleek action suspension ensures a soothing ride, creating the SR400 one in every of the foremost snug ways that to urge concerning within the town or rural area.
Classic 12-litre teardrop fuel tank

Throughout its long history, the SR400’s fuel tank style has remained mostly unchanged, with the sole real ‘update’ over the years being totally different paint and graphics. The SR400 is supplied with an equivalent acquainted teardrop vogue fuel tank that is just about clone of the first style, with the exception that the 2014 tank offers a capability of twelve litres.

The attentiveness of the sleek teardrop tank is Yamaha’s classic implement brand, and therefore the plain color scheme is highlighted by an easy ribbon-type band that runs round the tank’s sides.
Front hydraulic brakes and rear drum

The SR comes with a trained front disc that is slowed by a contemporary 2-pot caliper. Braking at the ass is provided by a sealed drum brakes, and this established front disc/rear drum combination delivers sleek braking performance with lots of feel.
Balance-type centre stand

It is anticipated that the SR400 can attract many homeowners World Health Organization can wish to hold out a spread of maintenance jobs themselves, like routine inspections, customization comes and tyre changes. so as to facilitate this add the garage reception, the SR400 is fitted with a balance-type centre stand that makes maintenance easier and additional convenient.
Lightweight atomic number 13 rims with 18-inch front and rear tyres

The latest reincarnation of the SR400 is supplied with 18-inch spoked front and rear wheels that completely match the character of this ancient huge single. These fashionable wheels ar equipped with light-weight atomic number 13 rims that guarantee low unsprung weight for sleek suspension characteristics.

    Light, slim and agile chassis
    Classic vogue with unchanged beauty
    Potential to customise into café racer, float or street scrambler
 hollow high tensile steel semi-double cradle frame
    Space-saving oil-in-frame style
    Telescopic front forks and twin rear shocks
    12-litre fuel tank with classic Yamaha implement brand
    Spoked wheels with light-weight atomic number 13 rims
    18-inch front and rear tyres
    Front hydraulic brakes and rear drum brakes
    Balance-type centre stand
    Chrome plated mudguards, headlamp rim and bar