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  1. J

    150 efi mariner runs rough at low rpm

    i have checked compression all are at 110. when im at wot runs perfect. but sometimes i idles rough and sometimes not at all. just bought this boat and hoping to fix my self due to financial reason thanks for any help.
  2. J

    ect sensor 150 mariner

    can this sensor make the engine almost impossible to start and idle rough? i pulled it out and it was melted.
  3. J

    rough idle 150 mariner 97

    i have a 150 mariner that runs great othe than idleing. it seems to load up even though its fuel injected? just bought it and thats the only thing holding me back thanks for your help. jason
  4. J

    rough idle 97 mariner 150

    i have a 97 mariner that at idle or during low speed seems to load up with which i feel is strange due to the fact its fuel injected. also tach works when you trim the motor. thanks for your help
  5. J

    97 mariner runs better when you trim?

    I have a 97 150 mariner that when im driving and hit the trim button the tach begins to work and the motor runs better. It also has a rough idle hope some one can help.
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