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Yamaha YX600 Radian

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YX600 Radian
ManufacturerYamaha Motor Company
Parent companyYamaha
Production1986 — 1990
ClassNaked bike (standard)
Engine598cc, air-cooled, DOHC, inline-4
Top speed125 mph (201 km/h)[1]
Power66 hp (49 kW)@ 9,500rpm (claimed)[1]
56 hp (42 kW)@ 9,500rpm (rear wheel)[1]
Torque38 lb⋅ft (52 N⋅m) @ 7,500 rpm (claimed)[2]
Wheelbase54.7 in (1,390 mm)
Weight198 kg (436 lb)[1] (wet)
Fuel capacity12 L; 2.7 imp gal (3.3 US gal)
Oil capacity2,200 ml (2.3 US qt)
Fuel consumption4.9 L/100 km; 58 mpg‑imp (48 mpg‑US)


The YX600 Radian is a sport/touring motorcycle manufactured by the Yamaha Motor Company between the years of 1986–1990. Except for the suspension, the rest of the Radian was a parts-bin motorcycle and came equipped with a slightly detuned for mid and low-end torque version of air-cooled, inline-4 which came from the Yamaha XJ600 that was also along with the Radian used in the Yamaha FZ-600 Sport Motorcycle (precursor of Yamaha's FZR series of performance bikes), as well as smaller carburetors and frame from the 550 Maxim.[1][2] Cycle World obtained for the Radian a 1/4 mi. time of 12.76 @ 103.8 mph (167.0 km/h) and 0 to 60 mph (0 to 97 km/h) acceleration at 3.8 seconds.

Specifications

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Stock 1989 Yamaha YX600 Radian
Overall length 2,075 mm (81.7 in)
Overall width 770 mm (30.3 in)
Overall height 1,095 mm (43.1 in)
Model 1UJ (YX600S), 1UL (YX600SC)
Displacement 598 cc
Bore x Stroke 58.5 x 55.7 mm (2.3 x 2.2 in)
Compression ratio 10.0 : 1
Starting system electric starter
Lubrication system Wet sump
Engine oil capacity (total amount) 2.9 L (2.5 Imp qt, 3.1 US qt)
Fuel tank capacity 12 L (2.6 Imp gal, 3.2 US gal)
Fuel reserve amount 2.5 L (0.5 Imp gal, 0.7 US gal)
Carburetor type/manufacturer BS30 x 4/MIKUNI
Clutch type Wet, multi-disc
Transmission - Primary reduction system Chain, Gear
Transmission - Secondary reduction system Chain drive
Transmission type Constant mesh 6-speed
Frame type Double cradle
Caster angle 27°
Trail 128 mm (5.04 in)
Tire size (front) 110/90-16-59H
Tire size (rear) 130/90-16 67H
Brake type (front) Dual, disk brake
Brake type (rear) Drum brake
Suspension (front) Telescopic fork
Suspension (rear) Swing arm
Shock absorber (front) Coil spring, oil damper
Shock absorber (rear) Coil spring, oil damper
Wheel travel (front) 140 mm (5.5 in)
Wheel travel (rear) 98 mm (3.9 in)
Ignition system TCI
Generator system AC generator
Battery type/capacity 12N 12A-4A/12V 12AH

References

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  1. ^ a b c d e "The Yamaha YX600S Radian". Motorcycle Classics. July–August 2009. Retrieved July 16, 2017.
  2. ^ a b "Yamaha YX600 Radin". Cycle World. January 1986. Retrieved January 17, 2018.
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