I took the head off and found the remaining pieces of the valve seat. Here are pictures of the head and the piston as I found them. I don't see any ...

The bike is home now. I have not done much yet. I pulled the spark plugs and tried to rotate the engine via the rear wheel. It reaches a point wher...

And exactly which one of the 4 or 5 types of battery are in your bike, and what is its age? Found the receipt: It is a Caltric AGM battery purcha...

Any chance you left the fuel tap(.)s open when you parked it? Definitely not, but that would fit the pattern. It would be a good idea to shin...

I got a new to me bike and had this problem. Adjust not just the idle speed, but the idle mixture when warm. Also make sure there is a little freepl...