i have a 1979 Piaggio Ciao as imported by Vespa. in the process of cleaning the piston head per my manuals maintenance instructions, i broke one of the piston rings. i would be much easier to work on if i could fully remove the engine from the frame. however, i cannot for the life of me figure out how to get the spindle from that attaches the clutch to the flywheel off so i can drop the engine out to the frame. can anyone help me with this? also if you have any leads on parts (particularly piston rings) that would also be helpful.