| General information |
|---|
| Model: | ATK 604 MX |
| Year: | 1991 |
| Category: | Cross / motocross |
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| Safety: | See our safety campaign with the high safety rated bikes in this category.
|
| Engine and transmission |
|---|
| Displacement: | 562.00 ccm (34.29 cubic inches) |
| Engine type: | Single cylinder |
| Stroke: | 4 |
| 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) |
| Fuel system: | Carburettor. Mikuni TM 38 Flat Slide |
| Valves per cylinder: | 4 |
| Fuel control: | DOHC |
| Ignition: | CDI - Electric Advancing System |
| Starter: | Electric & kick |
| Lubrication system: | Dry Sump System |
| Cooling system: | Air |
| Gearbox: | 5-speed |
Transmission type
final drive: | Chain |
| Clutch: | wet plate |
| Physical measures |
|---|
| Dry weight: | 122.9 kg (271.0 pounds) |
| 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) |
| Chassis and dimensions |
|---|
| Frame type: | Nickel-Plated-Heat-Treated-Chromoly |
| Front suspension: | WP Adjustable USD |
| Front suspension travel: | 300 mm (11.8 inches) |
| Rear suspension: | WP Multi-Adjuster Shock (Linkless) |
| Rear suspension travel: | 330 mm (13.0 inches) |
| Front tyre dimensions: | 80/100-21 |
| Rear tyre dimensions: | 120/90-18 |
| Front brakes: | Single disc. 2-piston calipers |
| Front brakes diameter: | 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) |
| Exhaust system: | Supertrapp -Stainless-Steel |
| Speed and acceleration |
|---|
| Power/weight ratio: | 0.3254 HP/kg |
| Other specifications |
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| Fuel capacity: | 17.41 litres (4.60 gallons) |
| Oil capacity: | 2.30 litres (0.15 quarts) |
| Color options: | White |
| Further information |
|---|
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