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1991 ATK 604 MX Specs

General İnformation

Model ATK 604 MX
Year 1991
Category Cross - Motocross

Engine and transmission

Displacement 562.00 ccm (34.29 cubic inches)
Power 40.00 HP (29.2 kW))
Compression 9.8:1
Bore x stroke 94.0 x 81.0 mm (3.7 x 3.2 inches)
Valves per cylinder 4
Fuel system Carburettor. Mikuni TM 38 Flat Slide
Fuel control Double Overhead Cams/Twin Cam (DOHC)
Ignition CDI - Electric Advancing System
Lubrication system Dry Sump System
Cooling system Air
Gearbox 5-speed
Transmission type, final drive Chain
Exhaust system Supertrapp -Stainless-Steel

Chassis, suspension, brakes and wheels

Frame type Nickel-Plated-Heat-Treated-Chromoly
Front suspension WP Adjustable USD
Front wheel travel 300 mm (11.8 inches)
Rear suspension WP Multi-Adjuster Shock (Linkless)
Rear wheel travel 330 mm (13.0 inches)
Frame 80/100-21
Front tyre 80/100-21
Rear tyre 120/90-18
Front brakes Single disc. 2-piston calipers
Front brakes diamete 24 mm (0.9 inches)
Rear brakes Single disc. Disk mounted on front-sprocket . 1 piston caliper
rear_brakes_diameter 14 mm (0.6 inches)

Physical measures and capacities

Dry weight 122.9 kg (271.0 pounds)
Power/weight ratio 0.3254 HP/kg
Seat height 950 mm (37.4 inches) If adjustable, lowest setting.
Overall length 1,473 mm (58.0 inches)
Overall width 860 mm (33.9 inches)
Ground clearance 343 mm (13.5 inches)
Wheelbase 1,473 mm (58.0 inches)
Fuel capacity 17.41 litres (4.60 gallons)
Oil capacity 2.30 litres (0.15 quarts)

Other specifications

Color options White
Starter Electric & kick
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