pulse coil magnet

If it isn`t one thing its another and I cant believe this bike even ran, Took the pulse coil off and the top magnet is broken. Can it be replaced or should i just get the new coil

Picture, if possible? See if these numbers are good:
Checking with Kawasaki.com website has determined that the Pick up(pulsing) coils are available . The pulsing coil # is 59026-1133 and replaces the older # 1002, 1012 which were used from the MKII motors until the 2005 P24.

If the magnet can be put in place and will stay in place when the pickup bracket is bolted to the timing plate, it won't matter that it is broken. But use a piece of masking tape to get every piece of iron and bits of magnet off of the main magnet pieces. Or you can just get one from a person who has a set of pickups that are defective/broken.

Everybody should be keeping their pickups and timing plates even if a pickup is bad. The other pickup can still be used, and, obviously, someone may need one of the magnets.

This page describes how to get the polarity correct on the magnets for proper operation:
home.comcast.net/~loudgpz/GPZweb/Ignitio.../PickupAndRotor.html

wouldnt a broken magnet have 4 poles?

Firstly, the break on the magnet is perpendicular to the pole planes, so the pole positions on the magnet are mostly unchanged. Those magnets have poles on their big surfaces, unlike a typical bar magnet. Bar magnets have their poles on the ends, but these have poles on their surfaces. One entire surface is (almost entirely) one pole, and the other surface is the other pole.

Where the magnet is broken, when you try to put it together, it will repel. But forcing it back together mechanically, causes the flux lines to distort back into the original shape before the magnet was broken, thus restoring the original magnetism of the magnet.

Every permanent magnet really just wants to fly apart into individual atoms. But the chemical bonds of the material, holding it together, are way stronger than the magnetic forces trying to separate them. Forcing them together forces the flux to concentrate into a net magnetism for the overall body. So if the chemical bonds holding the magnet together get broken, just physically holding them together will accomplish the same thing and you end up with the same magnet you started with.

Heat and/or high mechanical shock can reduce the overall magnetic strength, but as long as the magnet just broke from a one-time drop or because the metal plates were warped etc. the magnetic strength is probably not diminished by any significant amount. The ceramic type magnets are pretty brittle, so it's not surprising they can break. There are also rubberized versions that seem to hold up better. I have not investigated whether one type may be stronger, magnetically, than the other, but it would be interesting to find out.

Looking at your photos...
You just have to make sure the smaller piece does not vibrate out of place. A tiny dab of thin glue might help, but keep it as small of a dab as possible. You don't want any significant layer between the magnet pieces and the metal, which would reduce the magnetism slightly.

I will just put it back together till I find one. This bike went down in flames years ago and everything was burnt in a fire. Wish I had a picture of it. The guy said the tank was blown up and the sides of it where straight out. Thanks for your time loudhvx.