Introduction to the Service Manual
Αυτό το έγγραφο παρέχει ένα overview του 1990 Johnson Outboards 9.9 HP - 30 HP Models Service Shop Repair Manual P/N 507871. This manual is an essential resource for owners and technicians performing maintenance, service, and repair procedures on Johnson and Evinrude outboard motors manufactured in 1990, specifically covering models ranging from 9.9 horsepower to 30 horsepower.
Published by Outboard Marine Corporation (OMC), this manual contains the same detailed information utilized by authorized OMC mechanics and technicians. Its purpose is to guide users through various service operations with clarity and precision.
Manual Content Overview
The service manual is structured to provide comprehensive guidance on all aspects of outboard motor service. Key areas covered include:
- Οδηγίες βήμα προς βήμα: Detailed procedures for disassembly, inspection, repair, and reassembly of various components.
- Exploded Illustrations and Diagrams: Visual representations of parts and assemblies, aiding in identification and correct placement.
- Οδηγοί αντιμετώπισης προβλημάτων: Systematic approaches to diagnose and resolve common operational issues.
- Χρονοδιαγράμματα Συντήρησης: Recommended intervals and procedures for routine upkeep to ensure optimal performance and longevity.
- Τεχνικές προδιαγραφές: Critical data such as torque values, clearances, and fluid capacities.
- Διαγράμματα καλωδίωσης: Electrical system schematics for diagnosing electrical faults.
This manual is designed to empower users with the knowledge required to perform repairs and maintenance effectively, potentially reducing the need for professional service and associated costs.
Using the Service Manual Effectively
To maximize the utility of this service manual, consider the following guidelines:
- Identify Your Model: Ensure your outboard motor falls within the 9.9 HP to 30 HP range for 1990 Johnson or Evinrude models.
- Review Πληροφορίες Ασφάλειας: Να διαβάζετε και να κατανοείτε πάντα όλες τις προειδοποιήσεις και τις προφυλάξεις ασφαλείας πριν ξεκινήσετε οποιαδήποτε διαδικασία σέρβις.
- Follow Procedures Sequentially: Adhere to the step-by-step instructions in the order presented to avoid errors.
- Συμβουλευτείτε τα διαγράμματα: Utilize the exploded views and diagrams to visualize component relationships and proper assembly.
- Refer to Specifications: Use the provided technical specifications for correct adjustments and torque settings.
Proper use of this manual contributes to safe and successful service outcomes for your outboard motor.
Εικόνα προϊόντος

Image: Front cover of the 1990 Johnson Outboards Service Manual, featuring the Johnson Outboards logo, "Service Manual 9.9 THRU 30 MODELS" text, and an illustration of an outboard motor. The OMC logo is visible at the top left and bottom left.
Πληροφορίες Εκδότη
This service manual was originally published by Outboard Marine Corporation (OMC), the manufacturer of Johnson and Evinrude outboard motors. The publication date is January 1, 1990. The manual's Part Number (P/N) is 507871.





