In all VRO-equipped motors, the 'Q' type plug is recommended (Designated by 'Z' in the plug number for NGK) WHILE LASTING LONGER, SEEM TO HAVE A SLIGHT PERFORMANCE HIT OVER WE HAVE FOUND THAT THE SURFACE-GAP PLUGS, WE RECOMMEND NGK INSTEAD, AND TRADITIONAL ELECTRODE-GAP RATHER THAN SURFACE-GAP EVINRUDE/JOHNSON MOTORS SHIP WITH CHAMPION SPARK PLUGS.
