Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 129Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 129

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Valve Guides NOTE: Inspect the valve guides for weardamageIf valve guide wear is out of specifications, replace the valve guideMeasure valve guide bore
VALVE GUIDE REPLACEMENT 1 Heat the cylinde

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