1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 193Get this manual
5Remove and discard the gasket and clean residue from the valve housing and the crankcase6Check the threaded holes in the crankcase for damage and repair as necessary7Inspect the reed valve assembly as described in this chapter8Check the condition of the carburetor adapter
reed valve housing and seal to the carburetorLeaks will cause that cylinder to run lean9Install new gasket against the crankcase and position the reed assembly into the crankcase opening10Position the carburetor adapter against the reed valve housing and install the six retaining screwsTighten the screws evenly to the torque listed in Table 10NOTE Fill the oil injection lines with oil before reconnecting them if the oil has drained from them
(Figure 82)The adapter must seal against the