Brendanmic

hi i was just woundering if anyone knows if there are any secrets to getting the magnetor off so i can get to the points, also woundering why there are sparks at the points but none at the plug is this normal? if not how do i fix this problem pls. was sparking at the plug before i dissasembles the whole engine to clean and replace gaskets, no cuts in wires used multimeter have strong feeling its got something to do with the sparking at the points, New to all of this just brought this bike in very good condition keen get it going.