ATK 604 MX - 1991 Specifications and Reviews

1991

General information
Category	Cross / motocross
Year	1991
Model	ATK 604 MX
Engine and Transmission Specifications
Exhaust system	Supertrapp -Stainless-Steel
Clutch	wet plate
Transmission type,final drive	Chain
Gearbox	5-speed
Cooling system	Air
Lubrication system	Dry Sump System
Ignition	CDI - Electric Advancing System
Fuel control	DOHC
Fuel system	Carburettor. Mikuni TM 38 Flat Slide
Valves per cylinder	4
Bore x stroke	94.0 x 81.0 mm (3.7 x 3.2 inches)
Compression	9.8:1
Power	40.00
Engine type	Single cylinder, four-stroke
Capacity:	562.00 ccm (34.29 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes diameter	14 mm (0.6 inches)
Rear brakes	Single disc. Disk mounted on front-sprocket . 1 piston caliper
Front brakes diameter	24 mm (0.9 inches)
Front brakes	Single disc. 2-piston calipers
Rear tyre dimensions	120/90-18
Front tyre dimensions	80/100-21
Rear suspension travel	330 mm (13.0 inches)
Rear suspension	WP Multi-Adjuster Shock (Linkless)
Front suspension travel	300 mm (11.8 inches)
Front suspension	WP Adjustable USD
Frame type	Nickel-Plated-Heat-Treated-Chromoly

Physical measures and capacities
Oil capacity	2.30 litres (0.15 quarts)
Fuel capacity	17.41 litres (4.60 gallons)
Wheelbase	1,473 mm (58.0 inches)
Ground clearance	343 mm (13.5 inches)
Overall width	860 mm (33.9 inches)
Overall length	1,473 mm (58.0 inches)
Seat height	950 mm (37.4 inches) If adjustable, lowest setting.
Power/weight ratio	0.3254 HP/kg
Dry weight	122.9 kg (271.0 pounds)
Other specs
Color options	White
Starter	Electric & kick