hi wonder if someone can help me,i have a 1995 beta techno 125,but the exhaust is not origanal,so ive been looking for some pictures of a 125,manual,tech specs but not found anything,but i have the chance to buy a 250 exhaust off a techno,just wondered if anyone knew is there any difference in the 125 to 250 techno engine,ifso what is it,bore to barrel ect,Thanks.