Have Boat Questions? Ask a Boat Repair Expert.
Thank you for allowing me to assist you, my name is ***** ***** I will be happy to assist you with your concern today.
There can be various reasons for this such as:
Engine/pump not balanced
Engine motor mounts
Poor running condition such as fuel issue, spark, compression, etc. This could be a problem with low speed jet/settings as well and need a carb rebuild unless efi which is fuel injected in which you would want to check fuel pressure and throttle position sensor as well as the iac and for other air leaks. You could have an tps reading incorrect at idle only.
Exhaust esp loose exhaust
Note that a bad motor mount can lead to/cause loose/disconnected exhaust as well.
Thank you!- Joe
Please rate my answer when ready. Bonuses are appreciated. If for any reason you are not satisfied please reply back to me for further assistance to which I will be glad to help you. If you have any problems for any reason please reply back and let me know.Thanks again for using justanswer and have a great day!
If you need any further assistance you can reply back at any time for my help.I'd be happy to answer any other questions you have even if not related.