Yesterday my bike stalled on me 3 times on a highway ride. Bike ran great on the highway but when I came to a stop (light, fuel etc) and only on 3 occasions the bike stalled suddenly with a puff of white smoke out of the front of the bike. The bike restarts without issue. The searching I have done here sounds like it may be a blocked crankcase breather blowing the valve cover gasket ... am I on the right track?. I checked the valves 3 weeks ago, changed the plugs, replaced the CCT. I am on a LONG trip starting Monday so any help you folks could come up with would be greatly appreciated.