My ultra 150 ran great in the water and on the trailer other than it wouldn't idle well, it would try to idle then die and it had a bog when you first opened the throttle. This things ran great at all other throttle position and top speed was good. Installed OEM diaphrams (for the fuel needle) and the little spring under the needle lever, cleaned the carbs again real good and nothing changed. Installed a new OEM fuel pump and cleaned the carbs real good again and nothing changed. Got a nice set of freshwater carbs, installed them and the ski idles and takes throttle good. Seems that when salt water carbs starting giving problems it best to junk them! I put about $350 in my carbs before I decided to replace them! Expensive lesson!

GOD bless