2009 Arctic Cat 150 ATV Service Manual, Page 58Get this manual
Carburetor Specifications Type Main Jet Slow Jet Pilot Screw Setting (turns) Needle Jet Jet Needle Idle RPM Float Arm Height Throttle Cable Free-Play (at lever) Keihin PTG 22 98 35 78 3.62.5 2MKNN 1600-1800 14.8 mm 1-4 mm (116-316 in
2Remove the cap screws securing the air filter housing to the frame; then loosen the clamp securing air inlet boot to the carburetor and remove the air filter
Carburetor
3Remove the choke assembly from the carburetor leaving the choke cable attached to the choke plunger4Loosen the screw securing the choke cable to the carburetor; then disconnect the choke cable5Remove the nuts securing the carburetor to the intake pipe; then remove the carburetor from the intake pipe6Remove the gasline hose from the carburetor7Remove the throttle valve cap and throttle cablethrottle valve from the carburetor and remove the carburetor from the ATVSecure the cable and throttle valve so the valve and needle will not be damagedDISASSEMBLING 1Remove the Phillips-head screws securing the float chamber; then remove the chamberAccount for the O-ring