Don't attempt it speedy it won't work, you can't get the timing correct, don't ask me how I know. It sounds like your coil is the problem and that will probably be the end of the chain saw. I have a Solo chain saw here with a dead coil, just haven't got around to taking it to the scrap and it is in good condition apart from the coil. I also has an Echo blower with a dead coil that I tried to fix for a friend, just on $100 for a coil so it to went too the scrap.
