quick question

[kfx400rider03]

whats is the stock spark plug in a 2003 z400
ngk____???

[dpizz450]

cant remember the number off the top of my head. go to an auto parts store and bring in your old spark plug, and they will either match it up or cross over the number on it on their computer. i know napa auto parts can look it up for any fourwheeler.

[KXRida]

CR7E