Asked in Spark Plugs and WiresFord Explorer SportFord Explorer XLT
What are some possible causes for oil fouled spark plug on lawnmower engine?
May 13, 2012 8:25PM
Three possibilities. Overfilled with oil. Worn cylinder or rings. Worn valve guides. On most smaller engines, it's cheaper to replace the engine or the short block. If the engine has overhead valves and the valve guides are worn, a short block won't fix the problem.