Bicycle to Motorbike Conversion Project

This project was something I've been wanting to do for a while since I was about 15, so during my summer break, I thought with my year's at university studying mechanical engineering, I could use my time to understand engines and fuel systems, and mechanical conponents used in all sorts of different transportations. This was a 100cc 2 stroke single cyliner petrol engine kit to fit on any bycicle universally, which I found meant any bike with a large enough space to fit an engine in the frame. I learned a lot from this project, mainly about proper engine alignment, and proper chain length, as a too tight of a chain twisted the rear wheel one direction or the other. Very interestingly, the starter motor to turn the engine on was very simple, and only used my initial force pedalling and dropping the clutch, which generated enough charge to ignite the spark plug and engage the engine. Despite the looks and it being an old bycicle I found in my shed, I tuned it and cut many different small peices of metal and foam, bent the frame, and swapped nuts for larger nuts to bulletproof the motorbike so there would be no metal-on-metal contact. I also learned of the role of the carburator, the air-choke and air filter, proper throttle ajustment and proper idling speed adjustment, and very importantly, fuel to oil mixture (especially on first start, which I mixed 32:1 ration for the break-in period), and also taught me the fuel system and connected filter. In the end, this motorbike was a very interesting project, and taught me about engine and all the required components for an engine to actually start, and continue running, even when not engaging the throttle.