Designed to operate over a much wider heat range than ordinary plugs Resists carbon buildup and pre-ignition High alumina ceramics for better heat transfer and electrical insulation Solid copper core and nickel tipped electrode provide a longer plus life Patented triple gasket sealing process eliminates the possibility of combustion gas leakage Solid copper core for greater spark Longer insulator nose prevents foulingFITS:ARCTIC CATYOUTH 50 (06,08)YOUTH UTILITY 90 (06-16)DVX 90 (06-16)CAN-AMDS90 4-Stroke (02-03)HONDATRX90 (93-06)KAWASAKIKFX50 (07-16)KFX80 (2007)KFX90 (07-16)KYMCOMONGOOSE 70 (2007)SUZUKILT-Z90 (07-09)YAMAHAYFM80 RAPTOR (05-08)YFM90 RAPTOR (09-16)YFM125 GRIZZLY (04-13)YFM125 HUNTER (05-06)