SPECIAL OPERATING CONDITIONS
Sea Water
Fresh water flushing is recommended after use in salt, polluted or brackish water to prevent deposits from clogging the cooling passages. Refer to Engine Flushing on p. 58.
Check gearcase anodes for deterioration and replace, if necessary.
Weedy Water
Weeds can block the water intakes and cause engine to overheat. Weeds on the propeller/impeller will cause engine to vibrate.
Run at slow speeds and reverse engine frequently to clear weeds from propeller/impeller. Check water pump indicator often.
Freezing Weather
Before operating in freezing temperatures, check gearcase lubricant. If water is found, test gearcase for leaks and replace lubricant. Refer to gearcase GEARCASE LEAK TEST on p. 238.
To avoid engine damage, keep the gearcase submerged in the water at all times.
When removing engine from water, keep in an upright position until the cooling system is completely drained.
IMPORTANT: Water that leaks into gearcase or is left in the cooling system can freeze when the engine is removed from the water. This can cause serious damage.
