Reading a Spark Plug-NGK Spark Plugs-Tech Video NGK Spark Plugs USA منتشر شده در تاریخ 1393/02/25 Have you ever wondered how to "read" a spark plug? This video describes in detail the best process to examine a spark plug and a ... Have you ever wondered how to "read" a spark plug? This video describes in detail the best process to examine a spark plug and assess its condition. همه توضیحات ... #autos_vehicles #ngk #spark #plugs #automotive #vehicle #plug #metallic #speckling همه برچسب ها ... #engine #spark_plug_motorcycle_part #repair #howto #automobile_industry #auto #autorepair #ngksparkplugs