Bike(94 F2) sat all winter and fired up fine several times over the past week or two. Ran it the other morning shut it down and tried later in the afternoon and the battery acts dead. Jumped it fine and ran it for 20 mins or so shut it down and battery still dead. All connections r good and it jumps every time. Last time i jumped it i couldnt keep it running for more then a min or two was acting cold and kept stalling. Anyone have any ideas?

 

My guess is its time for a new battery or somethings is up with your rectifier or stator.

 

Bike needs to be ridden to charge the battery, not a sufficient charge at idle.