This bike has about 4,000 miles on it since it Put it back in service a few years ago. I changed the points for a Dyna III. Valves are adjusted each spring and need very little, if any adjustment. I loosen the nuts on the exhaust each year for never seize but this is the first time they have come off (I am pulling the transmission to lube the splines). The bike runs great. It starts easily even when it is very cold outside though I do notice one cylinder is slow to get going. Once its warmed up for a couple of minutes it seems fine. The white valve is on the right side which is the same side as the crankcase breather. Can anyone steer me toward a cause / solution or do I even need to be concerned about this? Thanks.