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YAMAHA SR Models/Series Timeline, Specifications & Photos

Generations: 10
First production year: 1976
YAMAHA SR 400 photo gallery

In 2016, Yamaha released the SR 400, a standard motorcycle manufactured by the Japanese maker from 1978 to 2021. The bike debuted in 1978 as a street version of the Yamaha XT500, with a classic riding position and styling designs resembling the UJM of the 1970s.

Alongside the Yamaha SR 400, the Japanese maker sold the Yamaha SR 500, a similar machine with a more significant engine displacement achieved with a different crankshaft and a longer piston stroke.

The 2016 Yamaha SR 400 was fitted with standard features right from the factory, including a large round headlight with a chromed housing, a teardrop-shaped fuel tank, a single-piece dual seat with a passenger grab rail, a chromed exhaust system, and wire-spoke wheels with lightweight aluminum rims.

The bike had a double-cradle steel frame with a telescopic fork mounted on the front, offering 150 mm wheel travel and dual side-mounted shock absorbers with 104 mm wheel travel, delivering optimum suspension performance and handling.

The braking power was achieved by a 298 mm disc with a hydraulic caliper on the front wheel and a drum braking unit on the rear, delivering optimum stopping power.

As for power, the 2016 Yamaha SR 400 had a 399cc four-stroke single-cylinder air-cooled engine with an electronically controlled fuel injection system, boasting 23 hp at 6,500 rpm and 27 Nm (20 lb-ft) torque at 3,000 rpm.

full description and technical specifications
YAMAHA SR 400 photo gallery

The Yamaha SR 400 and SR 500 were standard motorcycles manufactured by Yamaha as street versions of the Yamaha XT500. The SR 400 was manufactured from 1978 to 2021 and featured a common riding position with styling cues resembling the Universal Japanese Motorcycle (UJM)of the 1970s.

Both machines were identical, except for the engine. The SR 400 packed a lower displacement engine with a different crankshaft and a shorter piston stroke. Also, both models were fitted with a kick starter.

The Yamaha SR400 was sold in the Japanese Domestic Market (JDM) from 1978 to 2021, while for the European, American, and Oceanian markets was introduced in 2014. In addition, the SR400's engine displacement complied with the (JDM) 400cc licensing restrictions.

In 2012, the Japanese motorcycle maker launched the Yamaha SR 400, a standard machine that didn't feature any significant modifications over its production time, except for the carburetor replaced by a fuel injection system and color changes.

In the power department, the 2012 Yamaha SR 400 had fitted a 399cc four-stroke single-cylinder air-cooled engine, boasting 23 hp with a maximum force at 6,500 rpm and 27 Nm (20 lb-ft) torque at 3,000 rpm.

The bike was built on a double-cradle steel frame that packed a telescopic fork on the front with 150 mm wheel travel and side-mounted shock absorbers with 104 mm wheel travel for optimum suspension performance and handling.

full description and technical specifications
YAMAHA SR 400 photo gallery

In 2011, the Japanese maker launched the Yamaha SR400, a standard machine manufactured by Yamaha from 1978 to 2012. The bike was part of the SR series in Yamaha's range and was delivered as a street version of the Yamaha XT500 model.

The last upgrade was in 2010 when the bike was fitted with a new fuel injection system for a more responsive throttle response, a new exhaust system with a new catalyzer to comply with tighter emission standards, and a larger oxygen sensor.

From the factory, the bike came with standard features, such as a round headlight with a chromed housing, a front steel fender, a teardrop-shaped fuel tank, a one-piece dual seat with a passenger grab rail, a chromed exhaust system, and wire-spoke wheels with lightweight rims.

The 2011 Yamaha SR400 took its power from a 399cc four-stroke single-cylinder air-cooled engine fed by an electronically controlled fuel injection system, boasting 23 hp with a maximum peak at 6,500 rpm and 27 Nm (20 lb-ft) torque at 3,000 rpm.

The bike was built on a double-cradle steel frame, fitted on the front with a telescopic fork with 150 mm wheel travel and dual side-mounted shock absorbers on the rear, delivering optimum handling performance.

The braking performance was achieved by a 298 mm disc mounted on the front wheel with a hydraulic caliper and a drum braking unit on the rear, offering solid and reliable stopping power.

full description and technical specifications
YAMAHA SR 400 photo gallery

The Yamaha SR 400 was a standard motorcycle part of the SR series in Yamaha's range, manufactured from 1978 to 2021 as a street version of the Yamaha XT500 model. The bike resembled the Universal Japanese Motorcycle of the 1970s and featured a standard riding position.

In 2002, the Japanese motorcycle manufacturer launched the Yamaha SR 400, a standard motorcycle with no significant modifications over its production period. The bike featured a kick-starter with a sight glass on the right side of the cylinder and a decompressor lever on the left side of the handlebar.

The bike came from the factory with standard features, such as a one-piece dual seat, a black-finished frame, a teardrop-shaped fuel tank, a chromed exhaust system, a round headlight with a chromed housing, and lightweight wire-spoke wheels.

In the performance department, the 2002 Yamaha SR 400 packed a 399cc four-stroke single-cylinder air-cooled engine fed by a single carburetor, delivering an output power of 23 hp with a peak force at 6,500 rpm and 27 Nm (20 lb-ft) torque at 3,000 rpm.

The bike's suspension system was handled by a telescopic fork on the front with 150 mm wheel travel and dual side-mounted shock absorbers on the rear with 111 mm wheel travel, offering optimum suspension performance and handling.

In the braking department, the 2002 Yamaha SR 400 was fitted with a single disc, a hydraulic caliper on the front wheel, and a drum braking unit on the rear, delivering strong stopping power.

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YAMAHA SR 125 photo gallery

Introduced at the end of the 1980, the Yamaha SR 125 had the same technical specs as the 125 XT, but with 12 HP at 8500 rpm instead of 13 HP. The Yamaha SR125 is one of the oldest 125 cruiser type motorcycles on the roads today. It first appeared in the UK way back in 1982, was withdrawn in 1986, then returned in 1991.

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YAMAHA SR 500 photo gallery

The Yamaha SR500 was a standard motorcycle part of the SR series in Yamaha's range, manufactured from 1978 to 1999 and powered by a single-cylinder air-cooled engine. The bike had a classic riding position and was a street version of the Yamaha XT500 model.

In 1984, Yamaha released the SR500, a naked machine marketed in Asia and Oceania from 1978 to 1999, North America from 1978 to 1981, and Europe from 1978 to 1983.

The 1084 SR500 model came equipped with standard features right from the factory, including a front steel fender, a one-piece dual seat with a passenger grab handle, lightweight wire-spoke wheels, and a round headlight.

In the power department, the 1984 Yamaha SR500 took its power from a 499cc four-stroke single-cylinder air-cooled engine fitted with a Mikuni carburetor, delivering an output power of 32 hp with a maximum peak at 6,500 rpm and 36 Nm (27 lb-ft) torque at 5,500 rpm.

The power produced by the engine was handled by a five-speed manual transmission and sent to the rear wheel through a final chain drive, pushing the machine to a top speed of 153 kph (95 mph).

The 1984 Yamaha SR500 packed a 35 mm telescopic fork on the front with 150 mm wheel travel, dual side-mounted shock absorbers with five-way spring preload adjustability, and 105 mm wheel travel on the rear.

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YAMAHA SRV 250 photo gallery

The bike was manufactured in the 80's and at the beginning of the '90's. The machine had an air cooled, four stroke, V twin, SOHC, 248cc engine and a dry weight of 146 kg.

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YAMAHA SR 250 photo gallery

The Yamaha SR 250 was a standard motorcycle powered by a single-cylinder engine, manufactured from 1980 to 1984 in the first generation and from 2001 to 2004 in the second generation. The first generation featured a 249cc engine, and the second packed a 239cc engine.

Both machines featured styling cues from the larger Yamaha SR 500 model. In the United States, the SR 250 was manufactured from 1980 to 1982 and from 1982 to 2002 in Spain. The SR 250 was a commuter bike and shared styling similarities with its older SR 500 and SR 400 siblings.

The 1980 Yamaha SR 250 packed standard features right from the manufacturing plant, including a round headlight, a teardrop-shaped fuel tank, a single-piece dual seat with a passenger grab rail, a chromed exhaust system, and classic-looking wire-spoke wheels.

The wire-spoke wheels were fitted with a front and rear drum braking unit, delivering reliable stopping power in every condition.

In the suspension department, the Yamaha SR 250 packed a 32 mm telescopic fork on the front and five-way spring preload-adjustable side-mounted shock absorbers on the rear, delivering optimum suspension performance and handling.

As for the power figures, the 1980 Yamaha SR 250 took its muscles from a 249cc single-cylinder air-cooled engine, boasting 21 hp with a maximum peak force at 8,000 rpm and 26 Nm (19 lb-ft) torque at 6,500 rpm.

full description and technical specifications
YAMAHA SR 400 photo gallery

The Yamaha SR 400 was a standard motorcycle manufactured by Yamaha from 1978 to 2012. The bike was powered by a single-cylinder engine and was a street version of the Yamaha XT500 model, with a standard riding position and styling resembling the UJM of the 1970s.

The bike was manufactured alongside the SR 500 model and produced until 1999. Both machines were identical, the only difference being the larger engine of the SR 500 model. The more significant displacement was achieved with a different crankshaft and a shorter piston stroke.

The SR 400 machine was marketed in the Japanese Domestic Market (JDM) from 1978 to 1981, and in the European, American, and Oceanian markets, the model was introduced in 2014.

The 1978 Yamaha SR 400 motorcycle came equipped with standard features, such as a steel front fender, a one-piece dual seat, a teardrop-shaped fuel tank, a chromed exhaust system, a round headlight, and lightweight wire-spoke wheels.

The bike was built on a double cradle steel frame with a 35 mm telescopic fork on the front with 150 mm wheel travel and five-way spring preload-adjustable side-mounted shock absorbers on the rear with 105 mm wheel travel.

In the performance department, the 1980 Yamaha SR 400 packed a 399cc four-stroke single-cylinder air-cooled engine fed by a VM32 carburetor, delivering 23 hp with a peak at 6,500 rpm and 27 Nm (20 lb-ft) torque at 3,000 rpm.

full description and technical specifications
YAMAHA SR 500 photo gallery

The Yamaha SR500 was a standard motorcycle manufactured by Yamaha from 1978 to 1999. The bike was designed as a street version of the Yamaha Xt500 machine, with a normal riding position and styling cues from the Universal Japanese Motorcycles (UJM) of the 1970s.

Alongside the SR500 model, the Japanese motorcycle maker released the SR400 model. Both machines were identical, with the only difference being the larger displacement engine of the SR500 model.

The SR500 motorcycle was not marketed in the Japanese market. In contrast, from 1978 to 1999, it was sold in Asia and Oceania, from 1978 to 1981 in the North American market, and from 1978 to 1983 in the European market.

The 1978 and 1979 SR500 US models were fitted with front and rear disc brakes, while the 1980 and 1981 versions packed a disc brake on the front and a drum unit on the rear. The European 1978 and 1979 models were fitted with wire-spoke wheels, front disc brakes, and a rear drum unit.

The 1976 Yamaha SR500 machine packed a 499cc four-stroke single-cylinder air-cooled engine with a Mikuni carburetor, delivering an output power of 32 hp at 6,500 rpm and 36 Nm (27 lb-ft) torque at 5,500 rpm.

The suspension was handled by a 35 mm telescopic fork on the front with a 150 mm wheel travel and five-way spring preload-adjustable side-mounted shock absorbers on the rear, offering optimum suspension performance and handling.

full description and technical specifications