Recently I have started having issues with starting the bike from cold. I get the spark and all lights come on; but it would start either at the second try, or from the first try, but with some obvious effort.
If I stall it for a few minutes, and then get back on it, it starts like a champ.
The bike is fuel-injected.
I think it began when I tried to start the bike with an almost empty tank about two weeks ago, but it has been doing that ever since.
Should I attempt to switch the spark plug? Any clues?