This comprehensive service repair manual covers 90HP Outboard engines from the 1996 to 2006 model years, including variations such as the 90TLR, C90TLR, 90TJR, B90TLR, and F90TJ. These engines, available in 2-stroke and 4-stroke configurations with 3 and 4 cylinder options, are known for their reliable performance and engineering quality, making them suitable for a wide range of marine applications. This manual provides detailed information to ensure optimal operation and longevity for your outboard. The scope of this English-language manual is extensive, offering detailed guidance on all aspects of maintenance and repair. It includes step-by-step procedures for scheduled maintenance, adjustments, diagnostic troubleshooting, and addressing common issues with their symptoms and causes. Technical specifications, fluid recommendations, and system overviews are also thoroughly documented. This resource is designed to empower owners, mechanics, and technicians with the knowledge necessary to effectively maintain and repair their 90HP Outboard engines.