yehi to baat hai bhai, Just like doctors in Pak treat you like a cow or sheep and just tell you to eat this and **** off, the mechanic will just "fix it" and dismiss you.
What I mean to say is that if a person wants to "customize" and overhaul their standard 72cc engine into a 105cc one which gives the same engine performance of a Junoon or pridor 100cc engine then there must be a proper method and list of things that needs to be done.
It's definately not as simple as to increase bore and stroke, you need new components that will be compatible with the new engine volume, you need new carburator that accomodates the increased oxygen demand - thus if you want to be successful in converting a 72cc engine into a 100% performing 100cc+ engine you need to either be an engineer and know what you are doing or you need a guide or 3rd option - Know a mechanic who knows this "engine boosting" business like he knows eating and sleeping.
Yes, I stay in Gujranwala whenever I come to Pak. My chacho bought me a 1991 model cd-70 and he's having work done on it from some friend mechanic.
The purpose of this thread was the hope of finding some technical person who could lay out some list or brief guide on specifically what needs to be done to bring out 100cc of power from a 72cc engine.
(What to buy, what type, what to configure and change etc)
Anyway I appreciate many of the posts, thank you all