i have a 2005 Suzuki katana gsx750f. I bought it put a new battery in it about 4 months ago. I have to charge it all the time though. the battery drains as soon as I try to turn the bike over. it also drops just when I turn the key to the on position. I checked the charging system with the flow chart and everything was right. now im at a loss. ive checked grounds and wires. all were snug. what could it be that completely draining my battery when I go to start it. I always have to have the choke on to start cause its like it doesn't have enough power to stay running. all turns off right away almost if the choke isn't on to warm it up. always garage kept. please help. I wanna do some riding before winter hits up here in Alaska.