I would also like to recommend that anyone trying to modify their motor perform only one mod at a time. After you are happy with the way things are working again, then you can consider modifying something else.
If you do several at once and then can't get it to work correctly it is much more difficult to determine what went wrong.
If you are new to internal combustion engines or 2 stroke motors then you should probably learn and understand the principals upon which they operate before you dive inside the crankcase. (as Fairracing31 so wisely pointed out.) An excellent source of information is. Gordon Jenning's Archivek
has a nice and simple 2 stroke animation as well.
Last but not least are the excellent animations done by Jim
(Manic Mechanic) which can be very beneficial.
Have fun! Ride safe