2004 Yamaha FX Cruiser High Output. The ski starts just fine. It will only run up to about 40mph whereas it usually tops out at 60mph. There is a red warning light on the bottom right side of the dash panel that comes on shortly after starting the ski, remains on and there is also a small engine icon flashing in the bottom of the speedometer screen. Another thing I noted (don't know if it's related) is that the chirping sound made when you activate or deactivate the security is not making any sound, but the security feature does still work. I recently had the oil changed at dealership and also installed a new battery myself. The air filter is dry, i.e. no oil on it. The ski is not in LMode, is not overheating and there is no debris in the intake or impeller. All visible electronic plugs in the engine compartment seem to be intact. The manual suggests there could be an oil pressure issue. Could the dealer have left something unplugged when the oil was changed? Any help or suggestions are greatly appreciated.