Merc misfire
planesailing
Member Posts: 173 ✭✭
I have a 242 with 5.7 efi engine and bravo 3. The engine generally runs rough almost as if it's misfiring unless I add a fuel stabiliser with the fuel. Should I have to do this every time I fill up or is there another issue I should be aware of?! It had a full service including plugs, leads and cap in August but still runs rough without the additive.
Comments
Perhaps its just coincidence when you add the additive?
How much are you adding to your tank, and how large is your tank?
perhaps its just water in your fuel.