NGK Iridium IX Spark Plug (7001) YAMAHA RT 180 and it will still work

and it will still work on ATV/UTV*

Big End: 63mm

this is the problem

Built-in KXP mounting system is compatible with Polaris������ composite ATV and RZR racks using the Polaris������ Lock & Ride������ System

hardware and complete instructions

NGK Iridium IX Spark Plug (7001) YAMAHA RT 180 and it will still workNGK 7001 BR8HIX Iridium IX Spark Plug NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today's high tech, high performance engines. Trivalent metal plating provides superior anti corrosion and anti seizing properties Corrugated ribs prevent flashover Pure alumina