Autolite

This is the spark plug you want for high performance Gasoline or Methanol. We have seen as much as a 3/4 HP gain simply by changing to this plug. Plug fits Predator 212cc , Predator 301cc, Predator 420cc engines Also fits Clone 196cc, GX160, GX200...

AutoLite #53 Copper Core Racing Spark Plug Heat Range - Medium Width - 3/4'' Reach - 14mm

AutoLite 3910 Spark Plug. Replacement for Honda GX200, Predator 212, 196cc Clones. and many others

AutoLite AR50 Racing Spark Plug. Non-resistor. Spark Plug Reach: 0.75"Thread Pitch: 14mmInsulator Type: ProjectedResistor: NoSpark Plug Heat Range: 2

Width - 3/4''Reach - 14mm