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  1. W

    Frost Plugs

    Hello everyone. Thanks for taking the time to read this call for help. Boat hasn’t been out this season yet. Was doing a tune up on my 2001 4.3 mercruiser EFI. When I got to the right side (non starter side) I noticed the two larger frost plugs were out. My heart sank. I did winterize my boat. I...
  2. W

    Intermittent Backfire 4.3 EFI

    I’m new to this group. So forgive me if I accidentally leave out important information. Was referred to come here by a friend. I own a 2001 Campion Allante with I/O 4.3 EFI mercruiser. This Backfiring issue just started happening on my last cottage trip. While under load it will intermittently...
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