Yamaha YX600: history, specs, pictures

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Yamaha YX600 Radian
Also called YX 600, Radian
Production 1986
Class Road
in-line four, four-stroke
Bore / Stroke 58.5mm x 55.7mm
Top Speed 78 mph (125 km/h)
Horsepower 51.36 HP (38.3 KW) @ 9000RPM
Torque 26.26 ft/lbs (35.6 Nm) @ 7500RPM
Fuel System carburetor. 4 mikuni bs30´s 30mm constant vacuum
Air Filter K&N YA-1600 `86-90[1]
Ignition tci full transistor ignition
Spark Plug NGK D8EA '86
Battery YUASA YB12A-A '86
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: wet plate
Final Drive Chain: 530x104
Front Sprocket 16T
Rear Sprocket 45T
Suspension Front: 36mm shocks
Rear: 2 shock absorbers, adjustable for spring preload
Brakes Front: double disc
Rear: expanding brake (drum brake)
Front Tire 110/90-16
Rear Tire 130/90-16
Wheelbase 54.53 inches (1385 mm)
Length 81.69 inches (2075 mm)
Width 30.31 inches (770 mm)
Height 43.11 inches (1095 mm)
Seat Height 30.12 inches (765 mm)
Weight 197.8 kg (wet)
Oil Filter K&N KN-144[1]
Recommended Oil Yamalube 10w-40
Fuel Capacity 3.17 Gallon (12.00 Liters)
Fuel Consumption 5.10 liters/100 km (19.6 km/l or 46.12 mpg)
Manuals Service Manual

The Yamaha YX600 Radian was a in-line four, four-stroke Road motorcycle produced by Yamaha in 1986. It could reach a top speed of 78 mph (125 km/h). Max torque was 26.26 ft/lbs (35.6 Nm) @ 7500 RPM. Claimed horsepower was 51.36 HP (38.3 KW) @ 9000 RPM.

Engine[edit | edit source]

The engine was a air cooled in-line four, four-stroke. A 58.5mm bore x 55.7mm stroke result in a displacement of just 599.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive[edit | edit source]

The bike has a 6-speed transmission. Power was moderated via the wet plate.

Chassis[edit | edit source]

It came with a 110/90-16 front tire and a 130/90-16 rear tire. Stopping was achieved via double disc in the front and a expanding brake (drum brake) in the rear. The front suspension was a 36mm shocks while the rear was equipped with a 2 shock absorbers, adjustable for spring preload. The YX600 Radian was fitted with a 3.17 Gallon (12.00 Liters) fuel tank. The wheelbase was 54.53 inches (1385 mm) long.

1987[edit | edit source]

1987 Yamaha Radian in Black

1989[edit | edit source]

1989 Yamaha Radian (YX600) in Blue
1989 Yamaha Radian (YX600) in Blue
1989 Yamaha Radian (YX600) in Blue
1989 Yamaha Radian (YX600) in Blue

In Media[edit | edit source]

References[edit | edit source]

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