My 2015 F3 SE6 was running perfectly and then wasn’t ridden for 3 months. It then started fine but upon giving it gas it was boggy and didn’t sound like it usually does. Accelerating and shifting made it hesitate and I had to give it more throttle than usual to get speed.

I got back home okay but it then would only idle briefly and die. It never idled at the normal RPM’s either.

I suspected bad gas or that I mistakenly put regular in it although I’ve never gotten bad gas in 50 years of driving and I doubt i put regular in it as it had been running perfectly before it sat for 3 months.

I drained the tank anyway and put in a gallon of premium. Nothing changed. The battery was original so i replaced that. No change.

Ive replaced the fuel filter with the exact same type with no improvement, still idles and dies.

NO CODES on the display.

I live in the Houston area so no extreme cold weather issues. I keep it garaged.

Any suggestions before I take it to a technician?

Thanks