NGK Motocross Enduro Spark Plugs for KTM - Motocross Engine Parts NGK is the undisputed leader in Motorcycle Spark Plugs, with spark plugs for virtually every Motorcycle application in the world. Utilizing a wide variety of materials, from standard copper-core type to Iridium, NGK is the world's leader in spark plug engineering and technology. NGK Spark Plugs are specified by more motorcycle manufacturers, including Honda, Yamaha, Suzuki, and Kawasaki. NGK Spark Plug finder:
Use this handy chart to find the correct Standard Plug code for your bike. If you want to upgrade simply use the Upgrade Plug code shown. Full descriptions of each plug variant can be found below the chart.
NGK Spark Plug range:
‘S’ TYPE (e.g. BP6ES)
NGK standard spark plugs with copper cored centre electrodes for wide heat range. Copper’s superior heat conductivity dissipates the heat of combustion away from the firing end, preventing hot spots that can lead to pre-ignition. Copper cored electrodes also mean that longer insulator noses can be used to protect against fouling.
‘G’ TYPE (e.g. B10EG)
These plugs feature a smaller diameter centre electrode tip made of conventional nickel alloy. The smaller diameter centre electrode means the voltage required to produce a spark is reduced. However as the tip is made of conventional nickel alloy the service life is reduced and these plugs are best used in applications where plugs are frequently changed.
‘V’ TYPE (e.g. B10EV)
The centre electrode of this type is made of gold palladium alloy and is even smaller in diameter than the G type at 1.0mm and has therefore an even lower voltage requirement. These ‘V’ types have now been discontinued and replaced with ‘VX’ or ‘IX’ equivalents.
‘GV’ TYPE (e.g. B9EGV)
These plugs have a centre electrode of precious metal similar to the V range. In addition the insulator nose is an improved design to allow better gas flow around the firing end. The ground electrode is shorter and stronger, making the GV range more suited for racing applications.
‘VX’ TYPE (e.g. B8EVX)
These plugs have an even smaller centre electrode (0.8mm) than the V types and this is made of platinum. This combined with a taper cut ground electrode means an even lower required voltage than the V types. The result is better ignitability along withimproved starting, idle stability and anti-fouling performance.
‘IX’ TYPE (e.g. BR8EIX)
Similar in design to the Platinum VX spark plug, the use of the precious metal Iridium allows us to manufacture a spark plug with an even smaller diameter centre electrode (0.6mm) without compromising durability. This extremely small Iridium tip centre electrode concentrates the available electrical energy and combined with the taper cut ground electrode provides the best performance in terms of starting, idling and especially throttle response.
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