I recently picked up a 1971 cl350...got it running today on both cylinders, and there is a loud tapping at idle, followed by hella smoke (white-oil) at throttle on... I want to know if that means my rings (just the right cylinder) are shot? or is this maybe indicative of a greater problem below? And also where is the best place to find reasonably priced rebuild kits? I found some on ebay etc... bikebandit and all that but just curious where Y'all are finding vintage engine goods. Thanks in advance.