Regardless of inside or outside, I change the oil, add stablizer to the fuel, remove the battery and put it on a battery tender.
If the bike is outside, I'd plug the exhaust pipes (to keep varmints out) and get a good bike cover (and lock maybe?) to protect it. I'm assuming the bike is parked on pavement or something like that too.
where i live in PA, i keep the battery in the bike and connect it directly to the battery tender, then i add stabil in the gas tank. also i make sure fresh oil is in the engine. I used to remove my battery but we sometimes get a weekend of warm weather and i dont feel like putting the battery back in. i have kept the battery in the bike and used the battery tender for 2 years now with no problem.
I also live in PA. Mine gets a dose of Seafoam in a full tank and an oil change (I run full synthetic). I store it in an unheated garage with the wheels sitting on 2x4's.
Its also covered with a bike cover and also a tarp. I keep the battery connected. Since I fly electric rc aircraft, a battery tender I don't need as I have 6 chargers that will charge any type of cell in any voltage from a trickle charge up to 7 amps.
I recall last year, right before xmas I was out riding so I try and keep the bike ready so I can sneak out a ride.
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