How to remove the spark plug on 07 and up Suzuki Burgman 400. Standard, specification Spark Plug type NGK: CR7E DENSO : U22ESRN Gap: 0. 70. 8 0. 03) Spark performance Over 8. 0 at 1 atm Change plug every 7, 000 miles I use Iridium spark plug on my bike Tutorial videos for 07+ burgman 400 Check out my store for awesome GoPro mounts and accessories br, br,