[bluestream]

Just bought a 97 Grand Touring 700 SE. This sled came with NGK BR9EYA plugs, but Royal Distrubuting said to use BR10ES. Any sugguestions as to which is right?

 

[Thumbdoctor]

NGK BR9ES gapped at .018"

 

[BOONEX]

.. i have the 98 GT 700 and it calls for BR9ES NGK ive upgraded from ROYAL DIST. with BR9EIX NGK IRIDIUM IX

 

[97mach1]

The original spec for your sled was BR10ES. Later, Doo updated it saying the BR9ES is the recommended factory plug. I personally use BR9EYA in my sled, starts easier, fouls out less. I have stock jetting in my 97 Mach 1 700 triple, and I can easily run a couple years on 1 set of plugs, even when riding when it's 40 degrees F out.