I'm late but i just started reading : http://www.amazon.com/The-Essential-Guide-Motorcycle-Maintenance/dp/1884313418 Click on Take a look inside and goto page 7, 8, and 9 they have a pretty good list of tools to start with to help you with all basic maintenance.
2 stroke https://science.howstuffworks.com/transport/engines-equipment/two-stroke.htm
4 stroke https://auto.howstuffworks.com/engine.htm
Carburetor https://auto.howstuffworks.com/question377.htm
Fuel injection https://auto.howstuffworks.com/fuel-injection.htm
Transmission https://auto.howstuffworks.com/transmission.htm
Clutch https://auto.howstuffworks.com/clutch.htm
Alternator/stator https://auto.howstuffworks.com/alternator.htm
Electricity https://science.howstuffworks.com/electricity.htm
Electrical circuit https://science.howstuffworks.com/environmental/energy/circuit.htm
Two stroke pipe theory https://www.motorcycle.com/how-to/how-twostroke-expansion-chambers-work-and-why-you-should-care-3423.html#:~:text=An%20engine's%20exhaust%20port%20can,radiates%20from%20the%20exhaust%20port
Further reading
https://www.amazon.com/Essential-Guide-Motorcycle-Maintenance-Techniques/dp/1884313418
Even more reading
This book is very good as a reference for how it all goes together as well as a practical guide for common maintenance.
I bought this book this week for some reading before spring. Just educate yourself, there's lots of free information out there.