Competition users loved the QuadSport Z400, too, and the machine powerfully proved itself as a winner in ATV motocross. In 2004, Doug Gust used the QuadSport Z400 to win the ATVA Pro class championship, earning the first title for a four-stroke production quad.

2009 QuadSport Z400 Specifications

Engine

Engine Cooling .................................................................. Liquid-Cooled

Valvetrain .......................................................................... DOHC, 4 Valves

Fuel Delivery ..................................................................... Fuel Injection, 36 mm

ECU ................................................................................. 16 bit

ROM ................................................................................ 96 Kilobyte

Compression Ratio ............................................................ 11.3:1

Injector ............................................................................. 12 hole

Displacement .................................................................... 398cm 3 (24.3 cu. in)

Bore ................................................................................. 90.0 mm (3.543 in)

Stroke .............................................................................. 62.6 mm (2.465 in)

Chassis

Wide Footpegs .................................................................. (46mm)

Front Track Widened ......................................................... (960mm) 37.8 in

Seat Height ....................................................................... 810 mm (31.9 in)

Ground Clearance .............................................................. 265 mm (10.4 in)

Overall Width .................................................................... 1190 mm (46.9 in)

Overall Length ................................................................... 1830mm (72.0 in)

Curb Mass ........................................................................ 193 kg (425 lbs)

Headlight .......................................................................... 12V 40/40W

Detachable, single