ITS RUNNING FINE ............If it is running fine why does it need fixing.The owners manual says change once a year for the cylinder, cylinder head , piston and rings ....this seems a little excessive if for example you only used the bike twice in a year for approx. 8 hours.........I would go with just use it until the top end starts to make a noise and then have the cylinder nikasil plated and put a new piston and rings in .and con rod kit if it needed one of those aswell.https://youtu.be/rDgXeYlpbOE?t=2m58s