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  1. P

    Mercury 25 HP 4 Stroke EFI Occasional Very High

    I will add - sometimes at slow speed, the motor will not respond to tiller control (to slow / idle). I have to give a quick twist of throttle and back to drop idle. Same issue or another?
  2. P

    Mercury 25 HP 4 Stroke EFI Occasional Very High

    Rev's up in neutral. It will be at high speed at start-up. It might settle down if shut off. Usually take time between starts to return to a fine idle. Someone suggested it was the Idle control sensor, but i am not seeing that part listed anywhere for this motor. 2006 OR149637 Thanks for...
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    Mercury 25 HP 4 Stroke EFI Occasional Very High

    I have a 2006 Mercury 25 HP 4 Stroke EFI. The boat and motor sat for 7 years inside a garage after my uncles stroke. Of course, gas was in the lines the entire time. Before running it, I took it in for a complete servicing this summer. They replaced the high speed pump, plugs, and all other...
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