[GA-DK]

2009 G5 bad missfire in driveway, with open throttle I made it up into garage, but then it died.  No fuse blown.  Fuel pump and all lights function, but no spark.  Suspect problem with wiring to cutout switch.  Dealer replaced wiring harness under warranty after electrical fire.  He had to use old connectors on new wiring.  Some mods looked iffy at the time.  Wiring below headlamp looks poorly supported.  When current cold snap is over, will pull headlamp and start checking.  Temp going to 20's tonight and 5F predicted tomorrow night.  No heat in garage.  Good day to stay inside.  GA-DK

[High On Octane]

Possibly the side stand switch or the roll over switch? 

[barenekd]

Or spark plug. Keep it easy on yourself. Check the easy stuff first, unless you've worked on something, then check on that first!
Bare

[trimleyman]

My 2011 G5 did this to me last year. Turned out to be very simple . HT (spark-plug) cap had gone bad (blown inside). Replaced it with an NGK (without the metal shield of the Enfield one) and all has been good ever since . Part number is LB01EP. This might be your problem.