spark plugs

Just wondering whinch is the best plug for a wr 400

thanks for the reply

IMO the best spark plug to use is the stock ngk plug has fitted by yamaha. When ive raced with anyother type of plug in freezing cold weather ive had problems with fouling. And when ive changed back all was good to go.

IMO the best spark plug to use is the stock ngk plug has fitted by yamaha. When ive raced with anyother type of plug in freezing cold weather ive had problems with fouling. And when ive changed back all was good to go.

this is what i have heard to be true.

the iridium ones seam to foul easier but last longer if they dont foul.:worthy:

ngk cr8e (stock plug)

I use the ngk cr8eIX works better than the stock cr8e my bike REALY starts better!!!

I use the ngk cr8eIX works better than the stock cr8e my bike REALY starts better!!!

I have found this to be true as well!

Being kick start only this is important.

I have found this to be true as well!

Being kick start only this is important.

Same here. A few more bucks but IMO well worth the $$. :worthy:

thanks for the reply, I have tried cr8e and cr9e, for supermoto trackdays, I find the cr92 works better at high revs but fouls easier

IMO the best spark plug to use is the stock ngk plug

that is all i run and have never had a problem:thumbsup:

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