Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 116Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 116

CYLINDER HEAD
Adjustments
Valve Clearance
IMPORTANT: Make all valve adjustments while engine temperature is cool
NOTE: Inspect cover gasket for cuts or tearsReplace gasket if damaged1Remove cylinder cover and spark plug

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