2015 Kawasaki Jet Ski Ultra 310R Owners Manual - Page 51

50 GENERAL INFORMATION j NOTICE Engine "knocking" or "pinging" can lead to severe engine damage. If engine "knocking" or "pinging" occurs, use a different brand of gasoline of a higher octane rating. Gasoline quality is important. Fuels of low quality or not meeting standard industry specifications may result in unsatisfactory performance. Operating problems that result from the use of poor quality or nonrecommended fuel may not be covered under your warranty. NOTICE To prevent engine damage, do not operate the craft until the cause of overheating is corrected. j Engine Warning Indicator/"dEtO" Character/Red Warning Indicator Light If engine knocking is detected, the warning indicator light goes on and the engine warning indicator blinks with buzzer sound to warn the operator. Also "dEtO" character under the speedometer blinks. The engine speed is automatically controlled to 3 000 rpm. Return to shore at low speed and have your authorized Kawasaki JET SKI watercraft dealer check your boat to determine the problem. To stop the buzzer, press any button for more than a second.