I am suffering with an F650 that will not start. It came in as a hard starting bike. I went thru the carbs and checked compression with the decomp taped. It was all good. There is fuel flow to the carbs. There is spark. After it went back together it started and ran all weekend. Monday morning it would not start and has not since. WTF? It is in a room at 70 deg. It does not appear to be flooded. It would not even go "putt" with a trickle of gas down the plug hole. I am a Harley/Honda wrench but I could use a little help with this Beemer. I have no manual for it, just trying to help out a buddy as the nearest Beemer dealer is 12 hours away.