mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Compression Check|Specifications|Page 3276 > < Spark Plug|Removal and Installation|Page 3272
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Compression Check: Specifications

The indicated compression pressures are considered within specification if the lowest reading cylinder is at least 75 percent of the highest reading.
Refer to the Compression Pressure Limit Chart.

Compression Pressure Limit Chart

Compression Check|Specifications|Page 3276 > < Spark Plug|Removal and Installation|Page 3272