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Z1A Specifications |
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Colour Schemes
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Candy Tone Brown / Orange - Candy Tone
Green / Yellow |
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Engine type |
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Air Cooled In Line Four Cylinder Four
Stroke |
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Valve operation
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2 Valves Per Cylinder Operated by Chain Driven Double
Overhead Camshafts |
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Cubic Capacity
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903cc |
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Bore x Stroke
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66mm x 66mm |
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Compression Ratio
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8.5:1 |
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Lubrication System
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Wet Sump with Gear Driven Pump |
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Carburetion |
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4 x 28mm Mikuni VM28 SC |
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Air Filtration |
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Paper Element Filter |
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Exhaust System
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4 into 4 |
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Ignition System
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Battery, Points and Two Coils |
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Spark Plugs |
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NGK B8ES |
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Starting System
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Mitsuba Electric Starter and Kick Starter |
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Primary Drive
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Straight Cut Gears |
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Clutch |
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Wet Multi Plate |
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Transmission |
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5 Speed Constant Mesh Gearbox |
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Final Drive |
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Enuma EK 630S-TG Heavy Duty Endless Chain with
Automatic Oiler System |
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Claimed Power Output
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82bhp @ 8500rpm |
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Claimed Torque
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54.2 ft lbs @ 7000rpm |
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Frame |
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Tubular Double Cradle |
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Front Suspension
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Oil Damped Telescopic Forks |
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Rear Suspension
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Swing Arm with Two Coil Over Oil Damped Shock
Absorbers |
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Front Wheel / Tyre
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Takasago Chrome Rim 40 Zinc Spokes / 3.25H x 194PR
Dunlop Gold Seal |
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Rear Wheel / Tyre
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Takasago Chrome Rim 40 Zinc Spokes / 4.00H x 184PR
Dunlop K87 MkII |
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Front Brake |
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Hydraulically Operated - Single 296mm Disc with
Twin Disc Option |
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Rear Brake |
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Rod Operated 200mm Single Leading Shoe Drum
Brake |
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Frame Numbers
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Z1F-020001 |
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Z1F-047500 |
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Engine Numbers
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Z1E-020001 |
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Z1E-047500 |
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