1999 GSXR 600 Suzuki turbo running a G4+ Atom. Bike will start and run a bit then die, when trying to restart I check for spark and have none. Using GM LS coils and cranking voltage at the coils is 12+ volts. I have swapped coils, cam sensor, crank sensor and tried starting with battery charger connected. Seems random as sometimes it starts and runs fine and other times it does this. Grounds to coils are fine. Went out to log this stuff this morning and it runs fine???