I can only comment of the fuel sitting for 1 month and by the way was it an ethanol fuel?
My Honda VFR sat unstarted for 7 months due to damage, insurance, parts on order issues and it had no problems with the same fuel in the tank that the Dealer put in for delivery. It was stored outside during the day uncovered in all weathers and had non ethanol fuel and was stock (actually 2 weeks old).
My other feedback, was with a GSXR1000K5 that I had that wouldn't start sitting for a week after me topping the fuel up with 6 month old petrol from the 4 L mower can (so I could buy fresh stuff for it). The Mechanics found the spark plugs were fouled, and a Suzuki design feature is that if one plug is crook, the bike ecu stops the other cylinders from firing at all.
To me they looked fine, but no problem after new iridium's fitted and nothing was seen in the error codes by them or me at home first up.
Last edited by Slower and Slower; 02-07-2017 at 04:32 AM.