Can a faulty coolant temperature sensor lead to a rich or lean mixture?

Dec 31, 2020 ... Spark plugs fouled with black residue, often greasy in quality. After cleaning off plugs, she starts/runs well, for a few more weeks, then ... 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. Jul 8, 2010 ... Carbon fouling - Dry, black sooty deposits leading to misfire and weak spark. Caused by an over-rich fuel/air mixture, faulty choke operation or blocked air ... Carbon-fouled. Ash-fouling. Ferrocene. Oil-fouled. Partially melted center ... Cause: Spark-plug replacement interval not complied with. Effect: Misfiring ... Nov 30, 2003 ... ... cause problems unless the spark plugs begin to foul out. In any event you would notice the misfire and lack of power from fouled plugs. As ... May 31, 2011 ... The carb is new out of the box and it was making all the plugs black carbon. ... dont use the old lead fuel pic s of spark plugs to read ... 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 ... ... spark plugs when you accelerate the next time (with OIL). A fouled, or carbon-fouled SPARK PLUG will NEVER cause a fault or warning horn. Secondary ignition ... Jun 7, 2016 ... If you ride fast, using a lot of engine speed the hotter spark plugs can cause pre-ignition (pinging), so you'll have to use your own judgment ... 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 ...