Spark Plug Revolution The Ultimate Guide to Ignition Efficiency

I would never re-use spark plugs on my SC (because it's such a PITA to change them), But on the daily driver I pull'em out, clean'em up on the ... a fouled spark plug is when it isn't burning the fuel cleanly, usually leaving wet oilly deposits of the plug, thus causing it to misfire even ... Is your spark plug misfiring? It may be a result of fouling. Shop great deals for NGK Spark Plugs at Sparesbox, http://bit.ly/2cdZTvr Learn ... He noticed spark plug #1 was fouled & swapped from #1 to #4 cylinder and it triggered it there too, so decided to change all of the spark plugs. Soft, black, sooty dry deposits on plug indicate carbon fouling. Carbon fouling is an indication of a rich air-fuel mixture, weak ignition, or improper heat ... Flight: Finding dead plug is easy - Open cowl ,gain access to exhaust > get crayon or grease pencil. Run engine on rough mag for short runup be careful here ... Some of them had some white residue on the diodes. I think thats normal, or could be from putting seafoam and injector cleaner through it a couple times. Plugs foul from either gas or oil. Gas fouled you just change them although they can be cleaned if you have too much time on your hands. Oil ... Next, inspect the spark plug and spark plug wires. A worn or fouled spark plug may fail to ignite the gas. Remove the plug, clean it if you ... of spark plug conditions. Normal condition. Heavy lead deposits. Melted electrodes. Carbon-fouled. Ash-fouling. Ferrocene. Oil-fouled. Partially melted center ...