Won't start at all
So I bout a 2009 ninja 250r on Monday from a private seller. Brand new to bikes but always liked them and watch videos on them. Everything was fine when I was riding around the block on Monday. Tuesday come everything is good also. Wednesday there was a big storm and had my bike outside without a cover. Just covered up the exhaust and steering controls with trash bags. Thrusday I try riding it and got it for a little bit but it kept stalling and dying. Also the throttle was like sticking because I was chilling in 2nd and 3rd gear and it was like not really working it didn't go when I moved it and when it did it was delayed a little. So it eventually dies on me on a street light and I have to take it home. So I try turning it on and sounds like the battery was dead I guess.So Friday comes and afternoon it started up good and I let it warm up for a few minutes and when I came back the bike was off. So I turned it back on and it was dead again. I went to buy a battery charger and charge the battery all day and it says full. So afternoon I put it back in and it started but only got to like 1 or 2 rpm every time I started it. So I take it back home and charge it for a few more hours and it won't start at all. The battery is connected good and the bike won't even make a noise. Also no lights turn on. Now I only have time to take it til next week to get it checked between college and work. Just need a little help and don't want to get ripped off by a mechanic.