the stickers and colors were different on the k0's
for example:
k0s came in sapphire blue, red, and gold (i think)
k0h's came in orange, emerald green, blue green….
there's colors i didn't include.
the k0h decal looks like this
the k0 decals look like this
on the k1's, the h models came in Ruby red, and candy yellow special (like my bike, which is ugly).
the frame decals are different again. on the k1's the sticker has a blue background and yellow lettering. the k1h decal had red blocky lettering saying 'trail 70' and looks like this.
one of my buddies called it the '7 u' because one of my 0's is missing the top…
otherwise, the VIN tells the story. look for the CT70H- whatever on the frame to make sure. that's an expensive letter… and to think on wheel of fortune you only have to buy vowels. it should be present on the motor too, and for serious cake, numbers should also match.
there's other nuances. some people here know. they'll chime in i'm sure.