Chainsaw Repair

Thanks again for the help, but I didn't find the answer.

I found the right coil, and replaced the old one.  It still will not fire.  I removed the flywheel and checked the key - no problem.  If the coil is good and the flywheel is properly aligned, it seems to defy the laws of science that there is no fire.  The magnet on the flywheel seems a little weak.  Maybe I'm stretching, but is it possible that the magnet loses its magnetic power?

Thanks,