1979 Johnson Outboards 4 HP Models Service Repair Manual P/N JM-7903, Page 59Get this manual

1979 Johnson Outboards 4 HP Models Service Repair Manual P/N JM-7903, Page 59

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1 installing new piston rings, check gap between ends 01 ring placing ring in its respective cylinderthen pushing ring down in the slightly with the bottom 01 the piston to square it upSee Figure 15 C

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