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ENGINE OVERHEATING
IMPORTANT: Do not run your engine — even for a brief start-up without supplying water to it. Refer to Flushing. While boating, the engine’s water intakes must stay completely submerged and unobstructed. Observe proper transom height and trim angle. While the engine is running, the engine’s water pump indicator must discharge a steady stream of water. Check the indicator often, especially when operating in weeds, mud and debris-laden water and at extreme trim angles.
1. Water intake screens 2. Water pump indicator
If the engine overheats, its System Check engine monitor will sound the warning horn and turn on the "WATER TEMP" or HOT light. Also, the S.L.O.W. protection system will immediately limit the engine’s speed to 1200 RPM. If the engine was running faster than 1200 RPM when the S.L.O.W. system activated, it will shake noticeably. The protection system must be RESET before the engine will operate at speeds over 1200 RPM. Under certain conditions the EMM will shut off the engine. The following conditions must be met to RESET the system: The engine must be shut off and the cooling temperature restored. IF the S.L.O.W. protection system activates and the stream from the water pump indicator becomes intermittent or stops, reduce speed to idle and: Shift to NEUTRAL. SHUT OFF the engine. Tilt the motor up. Clean the intake screens of any blockage. Clean the water pump indicator of any blockage. Lower the motor. Restart the engine and run at idle. IF cleaning the screens and indicator does not restore the water pump indicator’s steady discharge, SHUT OFF the engine and do not attempt to operate it. See your DEALER. IF cleaning the screens and indicator does restore the water pump indicator’s steady discharge, you might have to run for two minutes in NEUTRAL to allow the engine to cool and the light to go off. If the warning light stays on after two minutes, STOP the engine and see your DEALER. IMPORTANT: You must restore cooling to the engine to avoid serious engine damage. If you do not restore cooling to the engine the EMM will identify a progressive overheating condition and shut off the engine. The "WATER TEMP" or HOT light will flash. The engine will not restart until the engine is allowed to cool. After any overheat, have your DEALER: Torque the cylinder head screws. Inspect the water pump for excessive wear or damage. Inspect the thermostats. Inspect the engine for leaks.