Draft:Yamaha XJ550

Yamaha XJ550
	A 1981 Yamaha XJ550 Maxim, North American Model
Manufacturer	Yamaha
Parent company	Yamaha Corporation
Production	1981 – 1983
Predecessor	XJ650H Maxim
Class	Sport/Cruiser
Engine	528 cc air-cooled four-stroke inline-4, DOHC, 2 valves per cylinder
Bore / stroke	57 x 51.8 mm
Compression ratio	9.5:1
Top speed	122 mph (196 km/h)
Power	73 hp (54 kW) @ 9000 rpm (claimed)
Torque	41.9 lb⋅ft (56.8 N⋅m) @ 7000 rpm (claimed)
Ignition type	transistorized
Transmission	6-speed
Frame type	tubular steel
Suspension	Front: Telescopic Coil Spring Forks ; Rear:
Brakes	Front: Single 300 mm disc; Rear: drum
Tires	Front: 3.25-H19; Rear:130/90-H16
Seat height	29.3 inches
Fuel capacity	15 liters/3.9 gal
Related	Yamaha XJ650 Maxim

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Last edited by Quadrantal (talk | contribs) 46 days ago. (Update)

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The Yamaha XJ550 is a mid-size sport/cruiser hybrid motorcycle created by the Yamaha Motor Company and introduced in 1981 and produced through 1983. The XJ550 has the smallest engine capacity of all of Yamaha's XJ series bikes during the 1981-1983 period, and is based on a slightly different engine design than all other bikes in the XJ series. It is also the only XJ series bike to come equipped with a chain final drive, as opposed to the shaft.

The XJ550 was produced in two primary models: The Seca, a sporty, fairing included version aimed primarily at the global market, and the Maxim, a variation styled more like a cruiser/chopper for the North American market, featuring a retuned engine designed to produce more lower RPM torque, as well as a teardrop shaped gas tank, a wider rear wheel, and swirly patterned front and back rims.

History

Overview

The 4 cylinder, air-cooled, twin-cam 550cc engine is housed in a cross-braced duplex steel tube frame. Yamaha made the engine narrower by locating the alternator behind the cylinder block and above the gearbox rather than on the end of the crankshaft. The XJ550 had chain drive, unlike its contemporaries.^[3]

The XJ550's high revving engine coupled with its chain drive has made it, and continues to make it, a highly sought-after motorcycle for the chopper and modification enthusiast community. Many different components of the bike could be removed or modified, with builders often modifying the airbox, seat, rear frame, and exhaust system to reduce weight to a minimum. Modifications to reduce weight and change the bike's sprocket ratios allowed the bike to pull up to 9500 RPM in 6th gear, topping out at 122 mph, which is more than 10 MPH faster than its stock configuration.

References

^ ^a ^b Cite error: The named reference speed was invoked but never defined (see the help page).
^ Dave, Calderwood (November 12, 2012). "XJ550". MCS. Retrieved March 6, 2018.
^ https://www.motorcyclespecs.co.za/model/yamaha/yamaha_xj550%2081.htm

External links

[speed-1] Cite error: The named reference speed was invoked but never defined (see the help page).

[seca-2] Dave, Calderwood (November 12, 2012). "XJ550". MCS. Retrieved March 6, 2018.

[3] ttps://www.motorcyclespecs.co.za/model/yamaha/yamaha_xj550%2081.htm

[1]

[2]

[3]

History

Overview

See also

References

External links