I have a 1993 Honda XR100R Dirt-bike that I took the cylinder head off in order to change the camchain and I can't get it back over the piston rings. My question is 'is there any trick in order to get the cylinder head back over the rings without professional help and without breaking the rings?'. I've put too much money into it to junk it out and I've run out of funds to put it in a shop. Thank you for the advice, if any.