yz426 spark plug

Hey fellow motor heads... does anyone know what the proper gaping is for a new spark plug that im putting in my yz426 (2004)?

Which is it, an '04, or a 426? Can't be both.

(The gap is .024" either way)

426.. I will double check there year... You are right it cant be both, thanks for the help my man

Factory manual for my 02 shows range of .028 to .031 just did it today.

The Owner Service Manual calls for 6mm (0.024") on page 2-17. Where do you see the specs you cited?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now