What role does the vehicle's exhaust system play in carbon fouling?

May 30, 2014 ... ... plug solid with dirt causing a rich running condition fouling the plug. ... 2005 EZ GO ST fouled spark plugs, Gas EZGO. carbon fouled plug, Gas ... Apr 8, 2013 ... The resistors are there to supress radio frequency interference, which can cause the TCI to malfunction (weak spark, mis-timed spark), or even ... May 23, 2022 ... ... spark plugs, they foul badly with black carbon after only 20 ... fouling, I was hoping to rule out the original Strombergs causing the issue. 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 ... Sep 22, 2018 ... If all of the spark plugs show heavy dry carbon fouling, the rich fuel mixture may be caused by too much fuel pressure (check for a defective ... Feb 8, 2023 ... 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 ... Apr 12, 2013 ... ... cause the plug tip temperatures to decrease and carbon deposits to accumulate, possibly causing fouling and misfires). A solution to this ... Jun 6, 2011 ... Usually fouling is caused by too rich a mixture or weak spark, afaik. I think getting the right adjustments on the carbs, ensuring the proper amount of spark. Jun 21, 2004 ... If the plugs are fouled with a fluffy carbon black, your mixture is too rich. ... Possible causes: misfire, too cool, thermostat, plugs too ... Jan 29, 2022 ... While they do have a lot of carbon on them; I doubt ... You need to determine whether its spark or fuel that is causing it not to start.