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  1. M

    Fogging a 1991 Merc 175 EFI (XRi)

    I have read that you are not suppose to fog MPI engines due to gumming up the injectors and sensors. I have also read on here about people fogging efi 2 strokes just as if they were carb engines. I was wondering what the general knowledgeable consensus was regarding a 1991 175 Merc efi. Fog...
  2. M

    91 Merc 175 XRi suddenly quits. can restart.

    I have a1991 Merc 175 XRi that one day died when I was taking 4 friends for a ride. It was just like someone pulled the tether out. from 5200 rpm to 0. no sputter or coughing. I wouldn't restart right away but after 2 minutes it fired up and ran just fine. I got up on plane and cruised around...
  3. M

    Help! Merc Keyless ignition question

    I bought a Hydrostream with a Merc circular keyless ignition panel. I will get a pic but you program it so you enter a lock code then hit "run" then hit "start" and off you go. I am looking for and documentation on this Keyless system as I would like to change the lock code and some other...
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