There appears to be conflicting information about the early VF's reliability. There are references to problems with chain driven cams, and yet there is info on the net about high mileage reliability with happy owners. I am thinking about an 83 VF 500 with 13,000 miles on it. On this site there is a message to avoid VF's "like the plague." I am not a mechanic. I would appreciate any insight as to experiences with these early models. Thanks.