Who invented the modern spark plug?

Aug 20, 2006 ... What would cause the front cylinder spark plugs to foul heavily with carbon on my 2002 VTX 1800C? The rear cylinder plugs were ok. ... 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 1, 2001 ... SO, if your distro went spazmo, it could very likely have caused some plugs to foul (weak spark can do that). ... plug has become carbon fouled, ... 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 29, 2014 ... No more fouling of number 2 and the engine runs better then it ever did. Still puzzled about why only one spark plug fouled. Check out the carb. Jul 6, 2015 ... What bike? Forget the electronic ignition for now. Get it right first, otherwise you are introducing new variables. Carbon fouling is a result ... Jul 14, 2013 ... I expect that it is relatively new as the motor produces 105psi compression cold. Plug is a NKG CPR8E gapped to 0.9mm. The air filter is clean. 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 26, 2021 ... If you have a bad engine it can cause those issues yes , burning oil can foul plugs and damage converters also. Aug 20, 2014 ... So basically the problem is the same as what my friend experienced. What is not the cause in my opinion: Compression. 6 bar on both sides. It ...