How do problems with fuel injectors lead to carbon buildup on spark plugs?

Clearing a Fouled Spark Plug. Featuring Bob Nardiello. Subscriber question: "What is the most likely cause of a bad magneto check during run-up (too large a ... Sep 25, 2006 ... The Boating Forum - What causes a fouled spark plug?? - I have a 2003 Yamaha 130hp. One of the plugs has a wet tip with carbon build up. Jan 15, 2023 ... What might've caused this engine to be carbon fouled so badly? It ... spark plugs afterwards. Both can be significantly impacted after ... May 10, 2023 ... Yes - had it (and not running due spark plug) a number of times on motorcycles. Sometimes the original will work fine once started with a ... Jun 10, 2012 ... The bike keeps fouling the spark plugs (NGK B6HS). After 2 days of riding (+/-100 miles) they both become carbon fouled, the bike started farting and ... Jan 31, 2020 ... Gentlemen, I have a sooty, carbon-fouled spark plug problem that I ... carbon building up on the exhaust valves causing them to leak. Oct 26, 2021 ... If you have a bad engine it can cause those issues yes , burning oil can foul plugs and damage converters also. Sep 4, 2011 ... I say this as the plugs on the wife's R80 also look a little carbon fouled. ... plug causing the fouling. A leak down test would help ... Sep 8, 2020 ... A YouTube guru on the Nissan VG33 said this plug is more prone to fouling because the oil pools up more in this part of the head due to a flawed ... It has a Crane HI-6 ignition and MSD Dist." Well, if it's fouling plugs, (assuming the fouling is from gasoline and not oil, such as caused by bad rings or ...