Returning from a New Year's run, my V65Sp started running on one cylinder, vibrating, and making a horrible sound. Somehow, the exhaust valve head had separated from the stem. Then, the piston started demolishing the right cylinder and everything in it. The bike now needs a replacement cylinder, head, piston, rings, valves, etc. for the right side. Please help me find the necessary parts to get this little jewel running again - and let me know the cost.