Is my piston size stock?

[booblinker]

I have an 84 atc200x, i am putting new rings in it. The top of the piston has 965 or 956(cant remember). There are no other markings, does that mean it is stock? Or is that not enough info, and i need to measure it?

[84honda200s]

your going to have to measure it i think. i looked for both them numbers and one is a chainsaw piston and the other is a diesel piston.

[booblinker]

your going to have to measure it i think. i looked for both them numbers and one is a chainsaw piston and the other is a diesel piston.
With some of the stuff i seen on this trike it wouldn't surprise me if it want the right piston :lol:

[84honda200s]

lol but i dont see a chainsaw piston fitting it. get some pics and measurements for us.