1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 230Get this manual

1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 230

220 aCarburetor tuning is described in Chapter FourbWhen inserting the throttle valve into the carburetor, align the groove in the throttle valve with the pin in the carburetor bore while also aligning the jet needle with the opening of the needle jet
CHAPTER SIX

should be able to blow through the valve, but not draw air through it4Install new pump if damagedRepair parts are not available for the fuel pumps
ALTITUDE COMPENSATOR