Control function operation

check the jet intake for clogging. (See page 70 for information on the jet intake.)

TIP:

●If the cooling water passages are dry, it will take about 20 seconds for the water to reach the outlet after the engine is started.

●Water discharge may not be constant when the engine is running at idling speed. If this occurs, apply a little throttle to make sure

that water discharges properly.

EJU40321

Water separator

The water separator prevents water from entering the fuel tank by collecting any water that has entered the fuel tank breather hose if the watercraft was capsized.

If water has collected in the water separator, drain it by loosening the drain screw.

1Water separator

To drain water from the water separator:

(1)Place a drain pan or dry cloth under the water separator.

(2)Gradually loosen the drain screw to drain the water. Catch the draining water in the drain pan or soak it up with the dry cloth so that it does not spill into the engine compartment. If any water spills into the watercraft, be sure to wipe it up with a dry cloth.

(3)Tighten the drain screw securely.

EJU31664

Engine overheat warning system

If the engine temperature rises significantly, the engine overheat warning system will activate and the engine speed will be limited to about 3400 r/min to help prevent damage.

If the engine overheat warning system is acti- vated, immediately reduce the engine speed, return to shore, and then make sure that water is being discharged from the cooling water pilot outlet while the engine is running. If there is no discharge of water, stop the engine, and then check the jet intake for clogging. (See page 70 for information on the jet intake.)

NOTICE: If you cannot locate and correct the cause of the overheating, consult a Yamaha dealer. Continuing to operate at higher speeds could result in severe engine damage. [ECJ00041]

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1Drain screw

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