I have two Polaris skies one 1996 700 and 1995 750 every year i have had to pull the carbs down and clean the diaphrams, on the 750 and since i have started reading these pages I have noticed that some boaters are commenting on how there boat seems to lag, on accel. I wish to know should I change my diaphrams this season to be safe. And oh yes my wife and I are against unsafe skie owners, you're fellow skier and boat owner. 