Okay, if EN 125 parts will fit, then its ok.
I wanted to go big bore route, but that thing needs carb, and propably camshaft to help head flow at high rpm. And these things would cost me fortune, my engine eats oil. So i need to fix that mostly, my friend will come, he will strip down the top end and we will see if the cylinder is scratched, if it is, I will with the big bore way, because honing and getting new piston kit with gaskets, will be as expensive new BBR kit.
BTW: EN 125 is flat piston, so i think that our engine is more likely EN125.
And question about LT250 camshaft..
Somewhere i read that since GS 125 has bigger valves (30/26 versus EN125 ( 24?/22mm?) that the camshaft will not fit. What can youl tell me about that? I read it on xlite moto, few days ago, but it seems that its down currently.