1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 13Get this manual
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LUBRICATION POINTS
Figure 2-4 Standard Gearcase
1.0il level 2 Oil drainfill
Figure 2-2m Follower, Carburetor Linkage, and Choke Rod,
Figure 2-5 Weedless Gearcase