A Yamaha service manual for the 1985-1990 F9.9 Four Stroke and T9.9 Four Stroke, High Thrust models, with part number LIT-18616-FT-99, is an essential resource for anyone involved in the maintenance and repair of these outboard motors.
These manuals provide comprehensive technical information, including detailed procedures, specifications, and diagrams, to assist professional mechanics and DIY enthusiasts in servicing and troubleshooting the engines effectively.
