Operation

board (if packed). For details, consult your Yamaha dealer.

EWM00650

WARNING

Avoid using bolts, nuts or washers other than those contained in the engine pack- aging. If used, they must be of at least the same quality of material and strength and must be tightened securely. After tighten- ing, test run the engine and check their tightness.

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ZMU02637

1. Bolts

EMU30171

Breaking in engine

Your new engine requires a period of break- in to allow mating surfaces of moving parts to wear in evenly. Correct break-in will help ensure proper performance and longer engine life.

ECM00800

CAUTION:

Failure to follow the break-in procedure could result in reduced engine life or even severe engine damage.

EMU27080

Procedure for 4-stroke models

Run the engine under load (in gear with a propeller installed) as follows.

1.For the first hour of operation:

Run the engine at 2000 r/min or at approximately half throttle.

2.For the second hour of operation:

Run the engine at 3000 r/min or at ap- proximately three-quarter throttle.

3.For the next eight hours of operation: Avoid continuous operation at full throt- tle for more than five minutes at a time.

4.After the first 10 hours:

Operate the engine normally.

EMU27101

Preoperation checks

EWM00080

WARNING

If any item in the preoperation check is not working properly, have it inspected and repaired before operating the outboard motor. Otherwise an accident could occur.

ECM00120

CAUTION:

Do not start the engine out of water. Overheating and serious engine damage can occur.

EMU27110

Fuel

●Check to be sure you have plenty of fuel for your trip.

●Make sure there are no fuel leaks or gaso- line fumes.

●Check fuel line connections to be sure they are tight (if equipped Yamaha fuel tank or boat tank).

●Be sure the fuel tank is positioned on a se- cure, flat surface, and that the fuel line is not twisted or flattened, or likely to contact sharp objects (if equipped Yamaha fuel

tank or boat tank).

EMU27130

Controls

●Check throttle, shift, and steering for prop-

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