yea happened to me a week ago on wife's GSX650F...final straw as i always struggle trying to keep pistons unmarked
I've just discovered Popping them out with an airline.. Its a little haphazard, and its probably worth having some new seals about, but its very fast...
They also do spring loaded ones like internal circlip pliers which grip the pistons to pull them out also.




 
 
		 
 
		 
 
		 
 
		

 
 
		 
 
		
 
 
		 
 
		 
 
		


 
 
		