I had my carb rebult by a dealer with a kit.I have the single carb 587 motor,I had the pop off valve reset and took it back they replaced the accellerater in the carb.The unit will start and runs with a hose on it,Get it in the water and it turns over and wont start,I am getting gas and spark,I cut my wire back 1/4 and added a extra ground,My starter is new and all electrical has been replaced in the last 3 years.I never had this problem before this year when the carb was rebult.I had the unit running on the dock backed it in running and she died when we hit the water....No blockage anywhere I have backflushed this thing...What is the next step? The dealer dont know please help!