Yamaha XT550: review, history, specs

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Yamaha XT550
Also called XT550 (reduced effect), XT 550 (reduced effect), XT 550
Production 1982 - 1983
Class Enduro
Predecessor Yamaha XT500
Successor Yamaha XT600
single cylinder, four-stroke
Bore / Stroke 92.0mm x 84.0mm
Compression ratio 8.5:1
Top Speed 93 mph (149 km/h)
Horsepower 37.15 HP (27.7 KW) @ 6500RPM
Air Filter K&N YA-1874 `82-83[1]
Spark Plug NGK D7EA '82-83
Battery YUASA 12N5-3B '82-83
Transmission Gear box: 5-speed
Final Drive: chain
Final Drive Chain: 520x98
Front Sprocket 15T
Rear Sprocket 42T
Suspension Front: 38mm Air Assisted Forks
Rear: Monoshock Adjustable Preload
Brakes Front: expanding brake
Rear: expanding brake
Front Tire 3.00-21
Rear Tire 4.60-18
Weight 145.0 kg (wet)
Oil Filter K&N KN-145[1]
Recommended Oil Yamalube 10w-40
Fuel Capacity 3.17 Gallon (12.00 Liters)
Manuals Service Manual

The Yamaha XT550 was a single cylinder, four-stroke enduro / dualsport motorcycle produced by Yamaha between 1982 and 1983. It could reach a top speed of 93 mph (149 km/h). Claimed horsepower was 37.15 HP (27.7 KW) @ 6500 RPM. It replaced the Yamaha XT500 and was itself quickly replaced by the Yamaha XT600.

Engine[edit | edit source]

The engine was a air cooled single cylinder, four-stroke. A 92.0mm bore x 84.0mm stroke result in a displacement of just 558.0 cubic centimeters. Fuel was supplied via a overhead cams (ohc).

Drive[edit | edit source]

The bike has a 5-speed transmission.

Chassis[edit | edit source]

It came with a 3.00-21 front tire and a 4.60-18 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The front suspension was a 38mm Air Assisted Forks while the rear was equipped with a Monoshock Adjustable Preload. The XT550 was fitted with a 3.17 Gallon (12.00 Liters) fuel tank.

Description[edit | edit source]

The Yamaha XT550 is better at low revs with two choke carburetor, four valve head and engine balancer, but has a weak clutch. Ironically, the better XT550's very rare considering the fact that they were only produced for 2 years and that the four valve head goes eventually.

1983[edit | edit source]

1983 Yamaha XT550 in White
1983 Yamaha XT550 in White
1983 Yamaha XT550 in White
1983 Yamaha XT550 in White

Videos[edit | edit source]

In Media[edit | edit source]

See Also[edit | edit source]

References[edit | edit source]

  1. 1.0 1.1 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.