Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 17Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 17

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MAINTENANCE
Spark Plug Inspection
Inspect spark plugs at the recommended intervals1 Remove the spark plug leads by twisting the rubber boots slightly and pull off
2 Remove the spark

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