I'm Not sure if it was because my Friend wrecked my bike but every thing seems to be going wrong lately... First i needed new Plastics and a headlight assembly. Then the coolant started to disappear, The the taillight fell off.. NOW my speedometer quit working. Once i get up in speed it starts to jump around to different numbers. then when i let off it kinda corrects itself until i pull the throttle again. Any ideas on what this could be??