Coolant temperature warning light does not come on. Coolant temperature warning light comes on. EBU00714 Coolant temperature warning light checking method Ask a Yamaha dealer to inspect the electrical circuit. Turn the main switch to “ON” and the engine stop switch to “ Coolant temperature warning light does not come on. 4-3 Push the start switch with the transmission in the neutral position. Coolant temperature and electrical circuit are OK. Go ahead with riding. Coolant temperature warning light comes on momentarily. ACB-09E