Was working fine until I had it inside to swap a arms and skis then I went to test steering and my digital rpm read 0 and needle was bouncing all over. Switched to read mph digital and needle dropped to 0 and mph was reading like a tach and the mileage started rolling up faster with more throttle. Then I checked all connections and hit it a few times out of irritation and digital went blank and needle froze at around 120 mph. Lights come on and off but nothing else happens and runs fine. Ideas? Can it be rode without gauge working