4 New NGK Iridium IX Spark Plugs CR9EIX # 3521 by NGK

Product Information

The fakes terminal caps were finger tight, whereas the genuine caps couldn’t be undone by hand and needed pliers. If the engine is running dangerously lean the whole plug tip will be grey or white. If the temperature is over 850-degrees, pre-ignition may occur. Engine power will be reduced and you risk piston damage. Guaranteed next working day delivery available for mainland UK. Please allow an extra day for Scottish Highlands. Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines All three are .4 mm iridium center electrode, 10 mm thread diameter, 19 mm reach, 16 mm hex, .9 mm gap, and 5 kΩ resistor.

Aprilia Spark Plug Fitment Chart - Biker Rated Aprilia Spark Plug Fitment Chart - Biker Rated

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. The installation guide error on the fakes may cause even more damage if anyone also ends up using thread compound or copper slip. Using such products renders torque readings inaccurate by at least 20% so they should never be used. Modern plugs feature a special zinc coating so they simply don’t need it. NGK released a tech bulletin about this, which you can read in our other article in the link below:you will notice in the first picture by -AK- you can see the spark plug throat, that is the electrode and ceramic insulator and then space between the threaded material and the electrode/ceramic insulator. How far up inside the spark plug does that space go? Not sure if this is because the old plugs were past their best or if the new ones are better. :dunno 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. 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. 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.

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

FYI, bike spec = ZX-10R 2013, K&N air filter, Akrapovic slip-on + link pipe, Power Commander V, dynoed 172hp. A spark plug electrode is litterally at the absolute hottest part of the engine. It is where combustion starts, when compression is the highest it's going to be, and where a lightening bolt (that is a plasma discharge) is purposfully formed. Spark plugs are often called "hot" or cool or anything inbetween... This has NOTHING to do with how hot the fuel burns. It has to do with how hot the spark plug gets. so the uber smart engineers calculate that heat transfer path, the average temp for the engine at full throttle and full load, and at idle... proposed engine coolent temp limits and toss in 20% safety margin and then design a plug that will hold self cleaning temps over the widest range of engine RPM, ambient temp, etc. with out ever reaching "burn out" temp and volia' you have a plug for your specific engine. If the plug is brown or light grey your can assume your engine is in good condition and the spark plug is functioning well. Even when a plug is in good condition small deposits will accumulate. This is normal. Rich

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. The fakes terminal cap shape is pretty accurate, however cast mold lines are visible, unlike the genuine plug. Fakes are also known to not feature any copper core which means they retain heat and can eventually meltdown, it’s likely to be the same with these fakes. 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.

CR9EIX NGK Iridium Spark Plug | FREE UK DELIVERY | Flexible

Two percent of the people think; three percent of the people think they think; and ninety-five percent of the people would rather die than think." The metal in a spark plug has a single purpose: to channel the electrical energy through the spark plug. Iridium is far harder than copper and this allows the spark plug manufacturers to create a plug with a sharper ‘tip’ which better focuses the spark around the centre electrode without compromising its service life.could not get the D one of the manual. I have them on the bike but could be interesting to see a picture.