1977 Evinrude 55 HP Outboards OMC Service Repair Manual P/N 5307, Page 48Get this manual

1977 Evinrude 55 HP Outboards OMC Service Repair Manual P/N 5307, Page 48

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MERC-O- TRONIC
Adjust throttle lever and choke lever connecting linkage for minimum lost motion between carburetorsSet mark throttle to align with center of follower roller just as roller makes