Hi, I have a 1999 Sugar Sand with a 175 HP Sportjet. Yesterday, we were boating and the engine was running great. On the way back to the landing, I eased up on the throttle to stear away from a fishing boat. When I went to accelerate again, there was no power. It seemed like the boat was running at about 1/2 of normal. No strange noises when it happened. Made it back to shore, but it idled roughly. Any help would be greatly appreciated.