I am new on this site, I bought a 2003 k1200LT 3weeks ago and ride the bike for a week. While riding the gauges started jumping up and down. The bike shut down and refuse to crank. it started after jump but shut down. I replace the battery but will only click, no crank or start. I bye pass the alarm system, still click only. I did push start and bike started, put volt meter on the battery, the meter is reading 12.55v only while accelerating. Can someone please help me, this is my first BMW.