Break-In Procedure - Honda BF75D Manual

17. BREAK-IN PROCEDURE

Break-in period: 10 hours
Break-in operation allows the moving parts to wear-in
evenly and thus ensures proper performance and
longer outboard motor service life.
First 15 minutes:
Run the outboard motor at trolling speed. Use the
minimum amount of throttle opening necessary to
operate the boat at a safe trolling speed.
Next 45 minutes:
Run the outboard motor up to a maximum of 2,000 to
3,000 min -1 or 10% to 30% throttle opening.
Next 60 minutes:
Run the outboard motor up to a maximum of 4,000 to
5,000 min -1 or 50% to 80% throttle opening. Short
bursts of full throttle are acceptable but do not operate
the motor continuously at full throttle.
Next 8 hours:
Avoid continuous full throttle operation (100% throttle
opening). Do not run the outboard motor at full throttle
for more than 5 minutes at a time.
For boats that plane easily, bring the boat up on plane
then reduce the throttle opening to the specified break-
in settings called out above.
NOTICE
In the area where the lowest temperature becomes 0˚C
(32˚F) or less, if a cooling system may freeze, and
warm-up operation after starting is not performed but
a high-speed cruise is carried out, serious damage for
engine may be done.
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