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    Mercury Mariner 3L EFI 1997 bogs down after warm

    Engine runs well in the morning but shut it down and fish for a while, then restart to go home and it won't run over 3k. Raise the prop almost out of the water, move passengers to the bow and sometimes you can get her going but most times not. I checked compression, re-gaped plugs,removed each...
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    Mercury Mariner 3L EFI coil connector

    Working on a friends 225HP 1997 3L EFI. Coil PT# 827509T 7 The harness connector to the coil looks overheated / melted at the Green-red (Stator) pin. Need to replace the connector. This engine exhibits a problem under load or bogging after warmup. Max 3000 RPM with tach bouncing. Now it...
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