1983-1990 MerCruiser R MR Alpha One & Alpha SS Sterndrive Manual

Service Manual Application: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990 MerCruiser #6 Service Manual for Sterndrive Units R-MR-Alpha One & Alpha One SS, MC 120R/140B/185R/488R/898R/228R/260R Serial Numbers - 6216687 thru 6849289, MC 120MR/140MR/170MR/185MR/190MR/200MR/230MR/260MR/300 Tempest MR Serial Number - 6849290 thru 0A471374, MC Alpha One/Alpha One SS Serial Numbers 0A471375 and Above.

This INSTANT DOWNLOAD repair manual contains an introductory description and procedures for the inspection, service and overhaul of its main components. General knowledge information is not included. Please read the GENERAL INFORMATION section to familiarize yourself with basic information concerning the sterndrive unit. Read and refer to the other sections in this manual for information regarding proper inspection and service procedures.

This manual has been prepared using the latest information available at the time of publication. If a modifications have been made since then, differences may exist between the content of these manuals and the actual sterndrive unit. (NOTE: this manual is currently updated).

Illustrations in this manual are used to show the basic principles of operation and work procedures.

This manual is intended for use by technicians who already possess the basic knowledge and skills to service sterndrive units and its components. Persons without such knowledge and skills should attempt with caution to service any component by relying on this manual only. Never attempt to perform any work with out the assistance of this service manual.

Apprentice mechanics or do-it-yourself mechanics that don't have the proper tools and equipment may or may not be able to properly perform the services described in this manual. Improper repair may result in injury to the mechanic and may render the engine or sterndrive unit unsafe for the boat operator and passengers. Never attempt to work on your MerCruiser sterndrive unit without a manual. Important safety precautions, service information and other data may be included.

QUESTIONS AND ANSWERS

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A. Once you download the manual you can store it on your computer forever and refer to it when maintenance and repair is necessary.

Q. How does the manual appear?
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Q. Is the repair manual model and year specific?
A. YES! This is not a generic manual.

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