spark plug

[yammie rider]

I have a question, which one is the right spark plug for a 2000 rm125 or do they both work? A R6918B-8 or BR9EVX. Somebody told me they were just different brands.

 

[snb73]

BR9EVX is discontinued:
http://www.ngk.com/more_info.asp?AAIA=&pid=3909

BR9EIX replaced it @ $6.95:
http://www.ngk.com/results_cross.asp?pid=BR9EIX&x=34&y=8

R6918B-8 is suggested from the NGK web site @ $27.44:
http://www.ngk.com/results_appOther.asp?otherMotiveID=30958&mfid=1

A BR9EG or BR9ES will do just fine:

BR9EG @ $4.26
http://www.ngk.com/results_cross.asp?pid=br9eg

BR9ES @ $2.24
http://www.ngk.com/results_cross.asp?pid=br9es&x=52&y=16

 

[oregonsfinestkx25]

the BR9ES is like 1 dollar at the local autozone but the BR8ES is the good one

 

[yammie rider]

do they all last or work the same or does one last longer and start easier?

 

[Martin Cole]

If you don't mind spending the extra cash, get an EIX. The Iridium plugs run great and last a long, long time. The first pair I bought - one for our YZ 85 and the other for a KX5 were rubbish and lasted less than five minutes each. I threw them back at the dealer and registered my disgust. he gave me two more and they lasted us a season and a half without missing a beat. I wouldn't but anything else now if given the choice.
Think yourself lucky your price is $6.95. In the UK they are £8.95!
MC