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

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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 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. A spark plug fouls with every single power stroke of the engine, as the fuel burns a deposit of soot forms on the electrode. Form enough deposit, the gap resistance changes and the plug either is resisted out or shorted out, neither of which will fire the cylinder.

Kawasaki Spark Plug Fitment Chart - Biker Rated Kawasaki Spark Plug Fitment Chart - Biker Rated

The fakes terminal caps were finger tight, whereas the genuine caps couldn’t be undone by hand and needed pliers.FYI, bike spec = ZX-10R 2013, K&N air filter, Akrapovic slip-on + link pipe, Power Commander V, dynoed 172hp. NGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world. Maybe it's time for a little spark plug 101 as it was explained to me by a guy who didn't spout any BS.

Harley Davidson Spark Plug Cross Reference - Biker Rated Harley Davidson Spark Plug Cross Reference - Biker Rated

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. Copper is generally seen as being the best metal to use in terms of conductivity but iridium plugs are seen as premium as they last longer than standard plugs and can be built with smaller tolerances. Iridium spark plugs also have lower voltage requirements, meaning they perform better when starting and idling and some manufacturers also claim they offer a better throttle response. PLEASE NOTE – This article was written a few years ago so not all information provided may be accurate. For example, on some part numbers, NGK now uses Laser Etching instead of stamping, so the font information may not be accurate. Another Sparking Discovery 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.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.