After Break-In Period; End Of First Season Checkup - Mercury MerCruiser MCM 454 Mag MPI Service Manual

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SERVICE MANUAL NUMBER 23

After Break-in Period

To help extend the life of your MerCruiser power package, the following recommendations

should be considered;

At the end of the first season of operation, an Authorized MerCruiser Dealer should be con-

tacted to discuss and/or perform various scheduled maintenance items. If you are in an area

where the product is operated continuously (year-round operation), you should contact your

dealer at the end of the first 100 hours of operation, or once yearly, whichever occurs first.

90-861326--1 MARCH 1999

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Use a propeller that allows the engine to operate at or near the top of the maximum rpm

range (See "Specifications" section) when at full throttle with a normal boat load.

Operation at 3/4 throttle setting or lower is recommended. Refrain from prolonged

operation at maximum (full throttle) rpm.

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