Went riding and bike seized up. Kick starter wouldnt budge. Pulled heads and cylinders, and I definitely burned up the left side piston. I've rebuitl the top end before, so that's not a big problem. But my question is, since I've removed the cylinders, shouldn't the kick starter move? It is still frozen and I can't move it. Also, this might be a dumb question, but can I replace the stock domes on the stock cylinder head or do I need to buy a new head? Thanks.