Tb v2 head with stock cylinder

[Jonte]

I finally found a tb v2 head from Finland and it cost only 65€ :afro:

I have been thinking that i'm gonna buy stock cylinder, so do i need to modify the piston for the v2 head?

Is there any differences between yx 150cc and yx 160cc cylinders and pistons?

 

[my67xr]

You will at least need to check piston/valve clearances (1mm minimum)
The piston may need to have the valve relief's cut deeper, or the piston could be replaced with a TB piston

YX150 and YX160 both run the same piston/bore

 

[Jonte]

So i can use 150cc cylinder on the 160cc engine? I think that, i'm gonna modify piston then, because i found cheap 150cc cylinder kit.