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  1. #1

    Exclamation 155 4tec running rough????

    I recently bought this used motor from ebay, its in the ski now and I have been trying to get it too run smooth. It idles up and down, then it will stick at around 3000 and stay at that rpm till I shut it down. Also when I hit the throttle it bogs down and takes a bit to catch up. I have not had it in the water yet, just still trying to get it to run good. Oil has been changed along with new fuel. I do not know much about this engine nor did the owner.

  2. #2
    rangermtb5's Avatar
    Join Date
    Apr 2008
    North Jersey
    start with new spark plugs

  3. #3
    Replaced the plugs and still cant get it to run smooth

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