1985 ATK 560 Specifications and Specs
Specifications and workshop reference information for the 1985 ATK560, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Engine Type | Rotax 4-stroke |
| Displacement | 562 cc |
| Bore × Stroke | 94 mm × 81 mm |
| Compression Ratio | 9.8:1 |
| Maximum Power | 51 hp @ 9500 rpm (open exhaust, 860 cam) |
| Maximum Torque | 34.0 lb-ft (around 46 Nm) |
| Carburetor | Mikuni 38 mm flat slide | Replacement Options |
| Lubrication | Dry sump system with main stream oil filter |
| Fuel Mix Ratio | N/A (4-stroke) | Premix Calculator |
| Ignition | CDI electric advancing system |
| Spark Plug | Champion N6YC / NGK D8EA |
| Spark Plug Gap | 0.6 mm to 0.7 mm (approximately 0.024 in) |
Transmission
| Transmission Type | 5-speed |
| Primary Reduction | 76/32 (2.375) |
| Final Reduction | 15T / 48T |
Dimensions
| Overall Length | 84 inches (2133 mm) |
| Overall Width | 37.8 inches (960 mm) |
| Overall Height | 1,270 mm (50.0 inches) |
| Wheelbase | 1473 mm (58 in) |
| Ground Clearance | 343 mm (13.5 in) |
| Fuel Tank Capacity | 3.3 gal |
| Bearing Sizes |
Bearing Finder |
Chassis
| Frame Type | Double downtube chrome moly frame with integrated oil tank |
| Front Suspension | White Power upside-down forks with Brembo disc brake | Fork Oil Levels |
| Rear Suspension | White Power single shock with adjustable compression and rebound damping |
| Front Suspension Travel | 300 mm (11.8 in) |
| Rear Suspension Travel | 330 mm (13.0 in) |
Brakes & Wheels
| Front Tire | 80/100-21 |
| Rear Tire | 110/100-18 |
| Front Brake | Brembo disc |
| Rear Brake | disc |
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