Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 41Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 41

GENERAL INFORMAnON
If adjustment is necessary, loosen trim tab bolt and make small adjustments at timeIf the boat turns more easily to the left, move the trailing edge of trim tab to the leftIf the boat turns more easily to the right move the trailing edge of trim tab to the rightRetighten bolt and retest

aTrim Tab

Compression Check
1Remove spark plugs2Install compression gauge in spark plug hole

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