
NGK Standard Spark Plug - CRF110
NGK Standard Spark PlugCPR6EA-9S / CPR6EA-9 (hotter)CPR7EA-9CPR8EA-9 (colder)Fits the Honda CRF110 Details The NGK Standard Spark Plug is the workhorse at the heart of smooth-running engines around the world. OEM quality. Triple-gasket sealing process. Consistent performance. Sparkplug of choice in millions of vehicles. NGK is the world's largest supplier of OEM spark plugs. Tolerances are so close that the margin for error is near zero. Note: The higher number plugs are colder plugs. These are used to prevent knock on higher compression setups. More info can be found below.HEAT RATING AND HEAT FLOW PATH OF NGK SPARK PLUGSSome basic structural factors affecting the heat range of a spark plug are:Surface area and/or length of the insulator noseThermal conductivity of the insulator, center electrode, etc.Structure of the center electrode such as a copper core, etc.Relative position of the insulator tip to the end of the shell (projection)The major structural difference affecting the