This morning I look at my oil level sight gauge and do not see any oil level, try cleaning still no go. I think to myself, self how else can I verify my oil level. Self says pull off the fill plug and stick a dip stick down there. Well it doesn't look like I can get anything far enough down to verify any oil. So as easily distracted as I can get I determine there is no way the oil level is too low, I verified the last ride that the oil level was good, very small rear seal leak not so much that it can't wait until this winter and I can plan some down time. See how easy it is for me to digress. Anyway I hit the starter without using the choke, temps in the low 80's it starts then dies, try choke and restart, very low ruff idle. I repeated starting and whenever I give it a little throttle it dies. Finally able to have a slow idle and am able to tickle the throttle enough to hit the road. I fight with the throttle for about 6-8 miles of city driving, stop - start motor dies restart etc., etc., etc. Finally I look down and realize that I never replaced the fill plug. Some oil on the bike, pant legs etc. Pull into Advance Auto parts and purchase a temp rubber plug stopper, wipe up oil mess and back on the road. Notice right away the bike is running great, like normal. The missing drain plug must have caused excess/loss of pressure/vacuum in crankcase breather to air box.
The moral of this story is to listen to your bike it talks to us and we need to learn to listen.
I hope my wife doesn't read this