Yamaha F6B Owner's Manual download pdf (Page 48)

3-5

EMU00224

BREAKING IN (RUNNING IN)

ENGINE

Your new engine requires a period of break-

in (running-in) to allow mating surfaces of

moving parts to wear-in evenly. Correct

break-in (running-in) will help ensure proper

performance and longer engine life.

CAUTION:

Failure to follow the break-in (running-in)

procedure may result in reduced engine

life or even severe engine damage.

Break-in (running-in) time: 10 hours

EMU01367¯

Run the engine under load (in gear with a

propeller installed) as follows.

1) For the first hour of operation:

Run the engine at 2,000 r/min or at

approximately half throttle.

2) For the second hour of operation:

Run the engine at 3,000 r/min or at

approximately 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.

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Yamaha F6B Owner's Manual Page 48