so when its cold, the speedo would randomly jump allover the place. i'd be going 5-10 mph but it'll jump wildly. when its warm, it would do it still, but not as much. what should I investigate first? I know its cable driven. i'm not sure if its the cluster that's having issues or the cable. I also noticed when its pegged past 120, the whole needle kinda moves in a circle. I did remove the cluster to change the bulbs to LED when I first got it, but it didn't have an issue till about the 6th time I drove it.