1968 Evinrude Big Twin, Lark 40 HP Outboards Service Repair Manual P/N 4483, Page 39Get this manual

1968 Evinrude Big Twin, Lark 40 HP Outboards Service Repair Manual P/N 4483, Page 39

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sure that the single upset mark the side of the key is facing down8 Figure 4-18 Incorrect installation of the key will affect position and will result in late (retarded) ignition timing Figure 4-19 Ma