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  1. mercuryverado

    Merc 1986 115 Problems..

    I've got 3 things I need to figure out: Idle speed Surging Bogging I have checked all the carbs, replaced bad fuel lines, rebuilt fuel pump, installed new spark plugs, determined spark was good, timed, linked, and synced. My prop is a 3 blade Turbo SST, turing 4950 WOT on my CV-16. I have...
  2. mercuryverado

    1973 Evinrude 115 Starflite

    I have what I think is a 1973 115 HP Evinrude. I have been having some problems at idle speeds in F, N ,and R. Once I am on plane, the engine runs great and will take my boat close to 50. When I'm idling, it will make some thumping noise, and then rev back up, and then die down with the thump...
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