I have a 1998 GTX fuel injection, 127 hours. Compression test shows 125 psi on both cylinders. New plugs, new injectors. When I am in the water it will only hit 3140 rpm and 10 mph. When I have it hooked up to the water hose I can tap it out at about 6700 rpm. Wear ring looks good. Starts right up and stays running. Red light flashes and says MAINTENANCE, but goes off after about 5 seconds and does not come back on until after you start it again. I’m not sure what engine I have? Please help….