1970 Johnson 1.5 HP Outboard Motor Service Repair Manual P/N JM-7001, Page 41Get this manual
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WATER PUMP SCREWS
NOTE Driveshaft bushing in gearcase is not servicedIf worn, place gearcaseCLEANING, INSPEClON AND REPAIR
Wash parts in clean solvent such as Solvasol and dry with