What is the role of the fuel filter in preventing contaminants from reaching the injectors and affecting spark plugs?

Jul 4, 2016 ... Boat: 2001 Sunsetter Lxi, Engine: Indmar 5.7L 325 Monsoon, Hours: 200+. Upon changing spark plugs, discovered 2 out of 8 plugs are fouled. May 12, 2006 ... ... carbon, fuel, oil or other deposits; Will cause spark to leach to metal shell...no spark across plug gap will cause a misfire; Wet-fouled ... Dec 15, 2008 ... And if the O2 sensor was bad, would that even cause it to be hard to start? The carbon fouling could have happened due to the plugs firing ... Oct 24, 2015 ... Pulling the plugs, all four plugs are identically and evenly coated with a dry dusty heavy black carbon that cleans easily with a wire brush. I ... May 31, 2018 ... If the spark plugs have a matte black or grey appearance, it could be carbon fouling — something typically caused by a fuel mixture that is too ... Nov 11, 2017 ... ... spark plug gets a lot of carbon build-up. Any ideas please because i'm running all sorts of tests and cannot find the cause. Thanks in ... Oct 21, 2011 ... I believe if the engine is running too rich at some point it can cause a rich misfire condition in which the HC levels begin to rise along with ... It only took one change of spark plugs about 30 hours ago. Some ... A "weakness" in the ignition system will cause cause either a comeplete shut ... Carbon-fouled. Ash-fouling. Ferrocene. Oil-fouled. Partially melted center ... Cause: Spark-plug replacement interval not complied with. Effect: Misfiring ... Feb 10, 2025 ... If the spark plugs have a matte black or grey appearance, it could be carbon fouling — something typically caused by a fuel mixture that is too ...