Hi
If you have a syringe try opening the throttle slide and dripping five drops of fuel into the carb near the needle valve, (but not down the needle jet), almost close the throttle slide and kick the engine over - did it fire?
If yes you probably have a fuel blockage - undo the carb banjo with the fuel selected on - does fuel leak out? Yes - blockage is in the carb
If not repeat the process a couple of times more - did it fire? - Yes see above.
If not confirm you have a spark and that the plug is now wet.
Plug dry - check for blockage in the tank system, (tap strainer / tap / fuel pipe).
No spark - fault find ignition system
If yes to both you most probably have a timing issue. It is easier to check the ignition timing than valve so go there first.
When setting the ignition timing ensure you are on the compression stroke.
Have fun getting to know the bike, all good experience for if/when it breaks down on a run
Regards Mick