NGK Racing Series Spark Plugs

The R6061 racing series spark plugs come in a variety of heat ranges, offer an angled tab and beefy center electrode, as well as a shallow porcelain cavity.  These have shown to reduce fouling over other plugs. 

Heat ranges from 9, 10, and 11. All plugs should be gapped at .6mm. 

We have been running the 11 in the 125sx almost all year for hard mx, sand and mud.