125 scooter not turning help please

this is a haynes manual purchase moment in all honesty, i came off harsh tbh (always) but having a bike thats broken and zero knowledge means a LOT of explaning, theres manuals for that, there cheap, cop one, have a read. you will know the bike inside out in no time. if your stuck, by all means ask detailed questions. manuals are confusing sometimes, but there thorough, and exist. first place to start

 

id check for fuel and spark. if you have no spoark just change the coil, they often go, fuel is easy, when you check for spark, can you smell fuel comming out the engine? lol if you have no fuel then remove carb, remove base, if there is fuel in there/when you flipped the carb over then the fuel tap is fine, if the big bronze round screw (jet) is clean, has a tiny hole thats not blocked, along with the other small similar coloured screws, then you have fuel. if you have both fuel and spark, then you have no compression. dont go buying a cdi/anything major, it probably wont need it/will be a waste of money