I have a 1999 Yamaha xa1200x with 71hrs. The warning light and alarm sound come on with the word "exhst" obviously that means exhaust. I take it back to the launch ramp and opend the back compartment and there is water on the exhaust hose and it is steamy inside not smoky. There is condensation in that comartment. I had it serviced and took it out and within 5 mins it did it again. Its back at the shop any ideas??