This is why you can't 1. hurt your engine with the wrong plugs... you can only hurt your plugs. and 2. Plug slection has no affect on engine performance or horse power... If your plug is fireing during every power stroke... that's the best it can do. Fatter spark, bigger spark, super jiggy spark Doesn't matter... if the fuel/air mix is being ignited every time... that's as good as it gets. Mind you, there are 1000 things that can mess with "fireing every power stroke" but you won't get more power using a "hotter" plug.

FOR V-TWIN ENGINES - NGK Spark Plugs FOR V-TWIN ENGINES - NGK Spark Plugs

The NGK Iridium IX Spark Plugs utilise a 0.6mm laser welded fine iridium tip which ensures high durability and a consistently stable spark along with a tapered ground electrode which minimizes electrical quenching effect. The longer insulator nose prevents fouling, the corrugated ribs on the insulator prevent flashover and a triple gasket seal eliminates combustion gas leakage.Fake plugs are known to have air bubbles trapped inside the white ceramic insulator which can affect heat dissipation capability.

CR9EIX - Alternative spark plugs - Spark plug cross reference NGK CR9EIX - Alternative spark plugs - Spark plug cross reference

Install each spark plug by hand until you have wound the thread a couple of turns. This reduces the chances of you cross-threading the plug. Iridium IX Spark Plugs are the most technologically advanced high performance plugs available. Featuring a 0.6 mm iridium center electrode tip, they offer superior ignitability without sacrificing durability. The tapered ground electrode increases flame kernel expansion, while the superior heat range design is ideally suited to the demands of high performance environments.This is simply one mistake NGK would never make. If you think of how many of these are sold worldwide, you can see where the problem’s heading. The number of damage reports of snapped CR9EIX plugs and damaged engine heads would soar if worldwide customers tightened down M10 spark plugs to M14 specifications. A colossal recall would then pursue as M14 plugs are actually torqued down around twice as much as M10 ones! It’s important to use a torque wrench because under-tightening can cause overheating due to poor heat dissipation and as mentioned, overtightening will cause damage. If you’re going to be doing any sort of work on the bike, treat yourself to a decent set of tools. Most of mine are from the Halfords Advanced range (formerly called Professional). Just put iridium plugs in my K5 and it seems to have cleaned up a very slight light burble of a misfire that I had. Still not convinced these are fake plugs? One of the best parts of this whole investigation is that we of course found out the fake plugs don’t feature any IRIDIUM tipped centre electrode at all, it’s all LIES. Motorcycle spark plugs usually last around 16,000 miles, or at least this is when most manufacturer service schedules recommend you change them. That's typically once every other major service. However if you use Iridium spark plugs they will last a lot longer, usually well over 30,000 miles.

NGK Spark Plug Upgrade Chart - NGK Partfinder NGK Spark Plug Upgrade Chart - NGK Partfinder

And so, if your plugs are working, they reach the self cleaning temp, your wires are not leaking, your plug caps are properly connected and intact... you are good to go. NGK Iridium Motorbike Spark Plug CR9EIX9 uses the strong metal iridium which offers improvements in starting, idling & throttle response. Features & Benefits: however, if the plug is too hot, the material of the electrode or the ground tab will soften, distort, or even oxidize.

Guaranteed next working day delivery available for mainland UK. Please allow an extra day for Scottish Highlands. M&P Direct Ltd. is registered in England and Wales No. 03928542. Phoenix Way, Garngoch Industrial Estate, Gorseinon, Swansea, SA4 9HN. VAT No. GB 779 463 275. You’ll need this to help you find the location of your spark plugs and how to access them. This may sound simple but often the manual offers up some time-saving tips for your particular model.

CR9EIX/3521 NGK - Spark Plug Of Ignition IN Iridium, 3 NGK CR9EIX/3521 NGK - Spark Plug Of Ignition IN Iridium, 3

If you need to change your Kawasaki’s spark plugs but you’re not sure of the size or if you want to upgrade your plugs to an iridium version for a longer-lasting plug, this is the guide for you. Bill I can get you a set of Denso plugs,but I don't think they are anything special... The thing is the cheapest I can find is 44 € ( 11 € each),which is really a normal price here in Greece,since the CR9EIA retail at 15 € each...The image of the spark plugs above shows four common conditions that you’ll find your spark plugs in. From left to right the plugs are Normal, Rich, Lean and Very Lean. Full descriptions below. If you’ve not changed your plugs before, give yourself a couple of hours to complete the task. Here are the essentials you need for smooth re-plugging: