how do i change the spark plugs

[CHR15]

as the title says, i tried to change my spark plugs and all my socket piece don't fit all the way down the chamber. size socket do i need and what do i need to do???

[vipfto]

GPX? Try grinding down your socket or there may be an original tool in the tyre changing equipment for it

[silverGPX]

I have a GPX sparkplug change socket. Where abouts in brissie are you? Just shout me 10 bucks fuel to get there!