Ok, so let me explain what happened! I was riding a few days ago and got the bike very hot in traffic. Once I hit the open road I took off and it started to bog down so I pulled over and the oil level was very high!( to the top of my horseshoe tank) So I dumped out a little and rode the rest of the way home. I reached down and touched the primary for the first time and it was hotter than sh#$!! If the oil gets too full in the tank and the top two oil lines are submerged, where does the oil go??? I hope this run-on sentence makes sence.....jeff
On some years of the older ironheads there is a connection between the engine oil and primary oil; they can mix in there.
Is it possible you added engine oil thinking it was low when in fact it was at the correct level? When a bike sits for a while the oil migrates past the oil pump check valve and appears to be low, but it not.