Can a damaged or leaking exhaust system cause problems?

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 ... 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 ... 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 1, 2014 ... You're not doing your engine any favors like that. Smell, smell is unburned fuel mix coming out the exhaust. this is caused by mis-fire. put a ... Mar 18, 2020 ... My question is, can this oil consumption cause this bad of spark plugs within about 10K miles or is there other issues that I need to be looking ... Jan 9, 2006 ... You could end up with a large amount of carbon ... improper jetting, wrong plug, dirty air filter, low compression, poor fuel, weak spark. Dec 14, 2022 ... I would download ISTA and get the codes that causing the DTM. Post them here. Did you torque the spark plugs when you installed new ones? Or did ... Aug 18, 2001 ... Rich mixture and or rich main jets can cause the carbon/plug problem but if its really bad enough to cause a problem you should see black smoke. Nov 12, 2020 ... The most common reasons why a lawn mower spark plug fouls are listed below: Air Intake blockage (this could be caused by the choke being left ON ... 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 ...