2011 Arctic Cat DVX 90 / 90 Utility ATV Service Manual, Page 51Get this manual
2Turn the idle adjustment screw in or out until the engine idles at 1700 RPM NOTE: To access the gas tank, it is necessary to move the front fender panel, which requires removing the handlebar from its clampHowever, the levers, controls, cables, and wires do not need to be disconnectedThe front fender panel and handlebar assembly can be tilted forward far enough to gain access to the gas tank
7Remove the four Phillips-head cap screws and six nuts securing the front fender panelAccount for eight washers8Remove the gas tank cap; then tilt the front fender panel and handlebar forward9Remove the two cap screws securing the gas tank; then lift the gas tank and secure it out of the way
! WARNING
Adjust the idle to the correct RPMMake sure the engine is at normal operating temperature before adjusting the idle RPM