1968 Johnson Outboard Service Repair Manual 1-1/2 (1.5) HP P/N JM-6801, Page 37Get this manual
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5-7 UPPER MAIN BEARING AND OIL SEAL Install main bearing through bottom of crankcasePress against lettered side of case flush with inside of crankcaseCAUTION: Avoid 10ss of needles in main bearingInst