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  1. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Got it - THANKS!
  2. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    where did you find your readers?
  3. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Thanks for the help. I will get one of the readers like you guys have and give it a try when I get back to the boat in about 45 days.
  4. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Good idea, but I would be afraid to run the motor over 1,500 RPM on a garden hose. I was of the opinion that it cannot provide the proper volume of water needed to cool the motor. Am I wrong?
  5. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Thanks, I have been looking into one that will work. I am hoping to find one that I can use with the cowling on the motor since I will be running ~4,000 RPM and do not want other boat wakes to splash on the motor.
  6. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Thanks, I will look into it.
  7. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Good thought, I did not think of that. What is best way to check for someone with few to no tools?
  8. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Sorry! Boat is a 2020 Hurricane Coastal Cruiser 231. Prop is the same, has not been changed or damaged.
  9. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Good thought, but no, it is not water logged.
  10. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    The boat is in saltwater (FL) Nov to May, and then freshwater Ohio river May thru November so it does not sit long unused.
  11. T

    2020 Mercury 150 hp 4 stroke needs more RPM for same speed

    Last year the boat at 3000 RPM would hit 18-20 MPH. Nothing has been changed gear or prop wise, but now it has to run at 4000-4200 to get those speeds. NO codes on motor. Motor runs well and idles well. Starts easily. Same prop. New plugs, fuel filter, TPS and IAC since then. Roughly 1530 hrs...
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