starter clutch removal? 82 Kz750 M1 CSR

hey guys. Tried to remove my starter clutch using a pulley puller and the thing didn't even budge off the engine. in fact it busted my puller I just bought. Any ideas on how I can get this thing off? This is the last thing thats keeping it from running because I dont feel like kicking the damn thing. lolz.

This is the tool, but your rear axle may have the same thread. it may take an impact wrench to tighten it tight, then a couple firm blows with a hammer. If you have been pulling on it, with a Jaw puller, it might be bad. It is easy to cause the magnets to come loose, also it was never meant to have force on the outside of the Rotor. This could distort it, make it run untrue causing vibration etc.