I've had my DRZ 400sm parked all winter and have not started it yet. I have a new, fully charged battery, put in new gas, and replaced the tail light before firing it up. The lights are strong, new tail light works fine, but when I try to crank it, the headlight dies and nothing happens. I checked the charge on the battery and unplugged all the wires to the rear lights just in case I messed something up there. What could it be? Any help appreciated, I am not a very experienced motorcycle mechanic and don't want to take it to a shop for somthing simple. Thanks a lot.