how to get the piston out? 1st, put a clean rag between the jug and bottom end cases- then rotate the flywheel so that the connecting rod in not at the 12:00 position- 1 or 2 oclock is fine- get a wooden dowel-stick it tru the spark plug hole- till its end is on the top of the piston- then, hold the jug with your hand - around the bottom of the jug- this is so your hand absorbs some of the impacts when you hit the end of the wooden dowel thats sticking out of the spark plug hole- it may help to put a bit of oil down the spark plug hole before you pound --tap gently-- with your favorite hammer--