PURSUIT OS 315 Owner's Manual download pdf (Page 18)

OS 315

DO NOT PAINT THE OUTBOARD MOTORS WITH ANTIFOULING PAINTS DESIGNED FOR

BOAT HULLS. MANY OF THESE PAINTS CAN CAUSE SEVERE DAMAGE TO THE EN-

GINES. CONTACT YOUR PURSUIT DEALER OR ENGINE MANUFACTURER FOR INFOR-

MATION ON THE PROPER PAINTING PROCEDURES.

1.3 Engine Lubrication

4-cycle outboard engines have an oil sump in the crankcase that must be kept full of the type and grade of oil

recommended by the engine manufacturer. It is normal for 4-cycle engines to consume a small amount of

oil. Therefore, the oil must be checked before each use and changed at regular intervals as instructed by the

engine owner's manual. Use only the type of oil specified by the engine manufacturer.

2-cycle outboard motors are lubricated by an oil injection system. Always monitor the oil level before each

cruise by checking the gauge in the helm or visually checking the oil level using the reference marks on the

tanks. When additional oil is needed, use only the type of oil specified by the engine manufacturer. Refer

to the engine owner’s manual for oil specifications and additional information on the oil injection system.

Refer to the Fuel System chapter.

ALWAYS MONITOR THE OIL LEVEL AND ONLY USE THE TYPE OF OIL SPECIFIED

BY THE ENGINE MANUFACTURER.

1.4 Engine Cooling System

Outboard engines are raw water (sea water) cooled. Water is pumped through the water inlets, circulated

through the engine block, and relinquished with the exhaust gases through the propeller hub. The water pump

uses a small impeller made of synthetic rubber. The impeller and water pump cannot run dry for more than

a few seconds. In most outboard motors, some cooling water is diverted through ports below the engine

cowling. This allows the operator to visually check the operation of the cooling system. When the engine

is started, always check for a steady stream of water coming out of those ports.

NEVER RUN AN OUTBOARD MOTOR WITHOUT WATER FLOWING TO THE WATER

PUMP. SERIOUS DAMAGE TO THE WATER IMPELLER OR ENGINE COULD RESULT.

If the boat is used in salt or badly polluted water, the engines should be flushed after each use. Refer to the

engine owner’s manual for the proper engine flushing procedure.

NOTICE

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PURSUIT OS 315 Owner's Manual Page 18