I just got my ski back from the shop and turned out not as bad as I expected,everything checked out good,cleaned fuel valve, and something came unscewed on the back plastic things on each cylinder, that was also fixed, the tech inspected the grey fuel lines that eveyone says needs to be changed and said they were in good shape.Took it to the lake today and ran great, but one problem it will only run 5500 rpm with the gas valve on the (on) position, but put it on reserve position and it will fly,could it be the valve is bad,because before I took it to the shop it would not run at all in the (on) position. Thanks Alex