I tried to remove the clutch plate from my 02 650 vstar but the clutch keeps spinning how do i stop the clutch from spinning

indications are a failing throw out bearing for the clutch or clutch plate getting worn out AS the clutch plate lining wears , the pressure plate fingers come back closer to the throw out bearing causing it to spin
if you can make an adjustment on the slave cylinder push rod or clutch cable to give the bearing a nit more clearance the noise may not be there as it will not be spinning from the pressure plate fingers

Bearing gone in trans or a tooth missing off the cluster.

change the clutch and steels , they are really easy to do , even go on youtube to see how it is done , 1/2 hour job

I'm trying to remove the clutch on a spare motor but the nut and the top plate just keep spinning am I missing something here?

I have a. Vstar 1100 it's an 04 and has the pressure plate and to tighten the 6 bolts to the preferred pressure has the bolts completely touching the clutch pack outer most plate and doesn't leave enough room to even release the plates when you squeeze the clutch whats not right here???
8steel disc's and 8 felt disc's and goes as followed
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take spark plug out put a piece of rope in hole to lock piston there is a screw in clutch where drive shaft goes usually a torx bit head. when turnig screw rope will stop piston with out damage. keep rope in to remove clutch assm.

Your hub gear spline may be toast. You will have to remove the rear tire and shaft to check the splines on the drive hub. That is providing your clutch plates are not worn out.

Since you did not mention the age of this unit I am assuming that it has been in service for some time. My first thought is that you have an intermittent lid switch. You can test this yourself by setting the timer on spin and then open and close the lid at aout 10 second intervals making sure the tub spins and stops. It should spin lid closed and stop lid open each time. If it does not spin each time then you have a lid switch problem. If it does spin each time then I suspect that your spin tube clitch pads are getting worn. You cna remove the back panel cover and watch this again with the timer in spin. Keep you hands out of the inside rear of the maching and look When the lid is closed the spin tube should be lowering slightly onto the drive plate. If it appears to be slipping quite a bit then the 3 pads are worn out and the spin tube will have to be replaced. On other thing to note is there are 2 solenoids on a post on the top of the transmission. On the one controls the spin cycle you should see the actuator lift and fall as you have some one open or close the lid in the spin cycle. If the actuator is lifting and the spin tube clutch pads are dropping onto the clutch plate then again the 3 clutch pads have worn out. I hope this was of some help in answering your question.

It could be one of two things.If the bike has not been used for a while,the clutch plates sometimes stick together and dont let the gearbox stop spinning on the inside.The same if some of the plates are warped slightly.(from high load or excess heat)Both of these problems make it hard to get neutral.Clutch needs to be taken apart and checked.Many shops will always say the plates are warped to get the extra dollars.Make sure that they keep the old parts to give to you.

you need a piston stop to stop the engine from rotating,then with a clutch tool you can spin off the clutch,most of them are left had thread.if you don't have a clutch tool you can use a hammer and punch on one of the main arms of the clutch itself.for a piston stop you can use a piece of 1/4"rope.put the piston at the bottom of the stroke and stuff the rope in the sparkplug hole,this stops the piston from reaching it's full stroke.