Hello to all. I have a 97 challenger with twin 787. One of the engines is running just fine the other engine will not rev past 3500 rpm's in the water or on the trailer. I have replaced ALL of the fuel lines from the tank to the carbs, replaced the fuel filter, rebuilt both carbs, cleaned the rave valves, changed the plugs, checked for spark and that is good. Gas is good the other engine is running fine. After all of that it still will not go above 3500 rpm's. I am at a loss. Don't know what else to check on this boat. This is the first time I have ever owned a jet boat. I have always had boats with I/O's or inboards. So I figured I would post a thread and see if any of you seasoned jet boat/ski owners can give me some more insight on what else I can do with this problem.