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Figure 3F-7C. Removing Main Nozzle Welch Plug

If leakage is evident, carburetor must be disassembled and main nozzle check valve assembly replaced. To replace main nozzle, puncture welch plug with pointed tool, avoiding center, as shown in Fig. 3F-7C. Remove nozzle welch plug and use stepped end of punch, Part No. 96962-68, on nozzle, tapping it through into venturi using plastic hammer. See Fig. 3F-7D. Use larger end of tool to install the new check valve in the same manner. See Fig. 3F-7E.

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