1979 Johnson Outboards 4 HP Models Service Repair Manual P/N JM-7903, Page 81Get this manual
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JOHNSON 50
11 US PINJ 10 413
SAFETY WARNING
al'e 1'quid, use genuil1e 'ts 01' with equivalel1t ht1'istis il1cluding type, strel1gth, and materialFailure to do so