Yamaha XJ550
The Yamaha XJ550 was a in-line four, four-stroke Naked motorcycle produced by Yamaha between 1981 and 1984. It could reach a top speed of 109 mph (176 km/h). Max torque was 30.98 ft/lbs (42.0 Nm) @ 7500 RPM. Claimed horsepower was 48.95 HP (36.5 KW) @ 9000 RPM.
Yamaha XJ550 | |
Manufacturer | |
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Also called | XJ550H, XJ 550 H, XJ 550, Maxim |
Production | 1981 - 1984 |
Class | Naked |
Engine | in-line four, four-stroke |
Bore / Stroke | 57.0mm x 51.8mm |
Compression ratio | 9.5:1 |
Top Speed | 109 mph (176 km/h) |
Horsepower | 48.95 HP (36.5 KW) @ 9000RPM |
Torque | 30.98 ft/lbs (42.0 Nm) @ 7500RPM |
Spark Plug | NGK D8EA '81-83 |
Battery | YUASA 12N12A-4A-1 '81-83 |
Transmission | Gear box: 6-speed Final Drive: chain |
Final Drive | Chain: 530x104 |
Front Sprocket | 16T |
Rear Sprocket | 45T |
Suspension | Front: Telescopic Coil Spring Forks Rear: Swinging Arm With Dual Dampers Adjustable For Preload |
Brakes | Front: dual disc Rear: expanding brake |
Front Tire | 3.00-19 |
Rear Tire | 110/90-18 |
Weight | 204.0 kg (wet) |
Oil Filter | K&N KN-144[1] |
Recommended Oil | Yamalube 10w-40 |
Fuel Capacity | 3.96 Gallon (15.00 Liters) |
Manuals | Service Manual |
EngineEdit
The engine was a air cooled in-line four, four-stroke. A 57.0mm bore x 51.8mm stroke result in a displacement of just 528.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).
DriveEdit
The bike has a 6-speed transmission. Power was moderated via the Wet multi-plate.
ChassisEdit
It came with a 3.00-19 front tire and a 110/90-18 rear tire. Stopping was achieved via dual disc in the front and a expanding brake in the rear. The front suspension was a Telescopic Coil Spring Forks while the rear was equipped with a Swinging Arm With Dual Dampers Adjustable For Preload. The XJ550 was fitted with a 3.96 Gallon (15.00 Liters) fuel tank.
1981 - 1983 Yamaha XJ 550Edit
The XJ 550 was launched in 1981. The Yamaha XJ 550 Seca was also well-equipped, with features you’d expect only on bigger, costlier bikes: self-canceling turn signals; a clutch/neutral electrical interlock that prevented the Seca being ridden away with the sidestand down by killing the engine if you shifted into first before lifting the stand.
1983Edit
In MediaEdit
ReferencesEdit
- ↑ 2019 K&L Supply Co Catalog. K&L Supply Co. 2019.