What questions should you ask before authorizing any repairs?

May 3, 2014 ... Prevent spark plug fouling due to oil & carbon build-up. Image. Save ... I fouled out another set of plugs, What would cause this, Tried adjusting ... Nov 11, 2017 ... ... spark plug gets a lot of carbon build-up. Any ideas please because i'm running all sorts of tests and cannot find the cause. Thanks in ... Jun 11, 2015 ... ... spark plugs to use to avoid fouling? Back to Top. Direct Link ... So hotter plugs and carbon deposits could cause you pre-ignition and ping. 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 ... 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. 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 ... Mar 11, 2011 ... If the deposit is hard baked-on, black carbon, the result is indicative of use of too cold a plug. ... cause for a lot of fuel going into the mix. Feb 28, 2014 ... Years ago I thought a plug fouled was because of the carbon and lead build up. ... cause of sparkplug fouling is oil getting into combustion ... 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 ... Jul 14, 2021 ... Common types of fouling include lead, carbon, silica, loose debris, and oil. Another common cause of spark plug failure is a cracked ceramic ...