Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 105Get this manual

Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 105

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7 Inspect check valve for damage and replace if necessary 3 Check piston valve heightD Connect 12V battery Wait for several minutes Check piston height Replace if no change
aNeedle ValvePiston V

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