1973 Evinrude Norseman 40 HP Service Repair Manual P/N 4907, Page 41Get this manual
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screws and l110tor cover
Figure 5- 5 Power Head Attaching Screws
UPP ER EAHING SEAL LIP
REMOV ING UPP ER BEARING SEAL USING TOO 379239
RING INSTALLIN UPPER