MerCruiser 8.1 H.O., User Manual

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Section 3 - On the Water
Page 50 90-899883273 MARCH 2008
• Do not operate at one speed consistently for extended periods.
• Do not exceed 3/4 throttle during the first 10 hours. During the next 10 hours, occasional
operation at full throttle is permissible (5 minutes at a time maximum).
• Avoid full throttle acceleration from idle speed.
• Do not operate at full throttle until the engine reaches normal operating temperature.
• Frequently check engine oil level. Add oil as needed. It is normal for oil consumption
to be high during the break‑in period.
After Break‑In Period
To help extend the life of your Mercury MerCruiser power package, follow these
recommendations:
• Ensure that propeller allows the engine to operate at or near the top of the specified
WOT RPM range. Refer to
Specifications
and
Maintenance
.
• Operate the engine at 3/4 throttle or lower. Refrain from prolonged operation at
wide‑open‑throttle RPM.
• Change the engine oil and oil filter. Refer to
Maintenance
.
• Change the transmission oil and filter. Refer to
Maintenance
(ZF Transmission
models).
1.
End of First Season Checkup
At the end of the first season of operation, contact an authorized Mercury MerCruiser dealer
to discuss and/or perform scheduled maintenance items. If you are in an area where the
product is operated continuously, year‑round, you should contact your dealer at the end of
the first 100 hours of operation or once yearly, whichever occurs first.
1. Require fluid and filter change after the first 25 hours and then every 100 hours.