NGK CR9EIA-9 Spark Plug

Product Information

Designed specifically for the performance enthusiast Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling. 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.

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. 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. Most parts are pattern or aftermarket although some will be genuine but are not always stated as being so. 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. NGK is the brand leader in the UK spark plug market and is the world's biggest supplier to most motorcycle and car manufacturers. Each and every one of their products is designed to meet the most rigorous standards and are the professionals' choice due to 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.NGK is the brand leader in the UK spark plug market and is the world's biggest supplier to most motorcycle and car manufacturers. Each and every one of their products is designed to meet the most rigorous standards and are the professionals' choice due to their quality and technical excellence. Electrode configurations - Fine-wire centre electrodes provide better sparking and enhanced ignitability. Fine-wire ground electrodes further improve the ignitability of the plug Torque the spark plug up to your manufacturer’s recommended settings. If you don’t have a torque wrench, then get the plug hand tight and then add a ½ turn for a plug with a gasket, and more like a ¼ turn for a tapered spark plug. Over-tightening can snap the spark plug – a nightmare. Each and every spark plug manufactured by NGK is designed to meet the most rigorous standards, ensuring there ability to deliver reliability and consistent performance under all conditions. Each plug plays a major role in helping improve performance, fuel economy and the overall optimum efficiency helping to make a significant contribution in the reduction of emissions.

Superior materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements

Search spark plugs

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. 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. A typical copper spark plug will last around 20,000 miles and most get changed at a major service (usually around 16,000 miles) but an iridium spark plug will be good for around 50,000 miles and you do see people running them to 100,000 miles with no issues. 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).