have you got 12v on the post of the coil if yes, take off the main king lead lead and put a spark plug on and try if you get a spark look at dizzy if not the coilpack(Control) or fuse or the coil is u/s.
If you have a spark at the king lead look now at the dizzy cap and rotor arm, cap could be cracked andf going to earth.
If not look at the ppoints on the dizzy. and adjust up.
hope this helps