I have an 88 vt1100c and the temp light keeps flickering on almost all the time. It doesnt seem to do it if the bike isnt moving, and also doesnt do it as much when its hot outside. Im almost positive it isnt actually an overheating problem and something thats just faulty. Ive flushed the radiator and purged the air from the system like the service manual suggested. Is there anything other than the thermostat that could be causing this?