15hp mercury efi

[salmonite]

I have a Mercury 2019 efi 15hp 4 stroke I use in Canada. I have slight amounts gas in exhaust from prop. 
Is this something I should be concerned about? I would think the four stroke should be burning everything. The motor runs fine but I assume the computer is making up for any leaks in system? Am I right?

 

last thing I would need is a motor down in the middle of nowhere 

[salmonite]

I took it in, said fuel filter was loose? Make sense to anyone else? 

[thumbburn]

Absolutely