F4I's were notorious for issues with the Cam Chain Tensioners (Easy Fix), though it sound like you are referring to something else.
Sorry to hear about your issues, this would be the first I have heard anywhere online. I would definetely recommend letting your dealer check it out first. If it's bad outta the crate, they'll take care of you. If you further the issue by screwing with it if you have no idea where to start, they may not cover it.
Kinda hard to help you diagnose with that little info. Hopefully it's something simple.
Make no mistake, if there is one place Honda strives to excel, it's a quality build and reliability.
Good luck and keep us informed.