You can depend on NGK for quality and reliability * Constructed from durable material * Fine Iridium tip ensures high durability * Features superior anti-corrosion and anti-seizing properties * Iridium alloy has extremely high melting point, perfect for today?s high-tech, high-performance engines
I swapped out my original plug in an older quad. This is a good performing plug and runs well in any type of weather. The original plug was dark and carboned up, after a year of use with the new iridium NGK I checked it out and it looked almost brand new. It must have a larger spark pattern for better ignition.
I purchased one of these expensive spark plugs ($8.00)for my old Honda ATV which runs great but sometimes takes a couple of pushes on the starter button to fire it up; I replaced a fairly new NGK "normal" $3 spark plug just to see if there would be a noticable difference.....there was. It fired up before I could release the start button and did not need any choke. Runs better too. I used to have to let the ATV warm up or it would hesitate slightly going from 1st gear to 2nd gear, now it requires zero warm ..