So i just did a carb rebuild and also replaced the water pump. i took it out today and she fired right up ran great. rode out about 5 min to a sand bar. waited about an hour. started the engine back up, for some reason the motor did not want to go into reverse. so we rode around for about 10 mins and then it just slowed down and then shut off. I could not get it to start again. I'm thinking fuel problem. the engine has a yamaha fuel pump installed by PO. I took it apart and it looked good. i dont know what else to do any ideas would be great.