They(dealership) gave me my gtx back today didnt know whats wrong with it had it for a month.They checked so they say the whole ski over,laptop etc.here the deal the ski will not rev up over 5100.It will rev up out of the water but in water 35mph 5100 all she'll do.Im thinking fuel pump and filters or fuel reg.but at 637 dollars id like to know for sure.Iwanted to put a guage on the fuel system under load the dealer ship said they did not have a way to do this.We've put New exhust pipe ,cone pipe, plugs, water box check for broken baffels,rave vales cleaned,propellar,shaft ,wear ring all checked,new lanyard prog.,i mean what else can it be. Im thinking also to join prem member so i can get service manuals anybody got any suggestions.......help