Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 1998–2006 Service Repair Manual

🛠️ Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 1998–2006 Service Repair Manual – PDF Download

🔧 This official Yamaha service manual covers complete maintenance and repair procedures for the 115 HP 115F 2-stroke outboard motor, along with its U.S./Canada model S115X. Covering model years 1998 through 2006, this OEM guide includes step-by-step instructions, high-resolution diagrams, and detailed troubleshooting techniques.

📲 Instant PDF Download – Viewable on all devices, fully searchable and printable.

📖 Model Background

The Yamaha 115F (also known as S115X) 2‑stroke outboard was produced from 1998 through 2006, part of Yamaha’s robust 115 HP inline‑4 performance line. Powered by a 1.7 L (≈1,730 cc) two-stroke SOHC engine with twin-carburetor induction and CDI ignition, it delivered a powerful 115 HP at around 5,000 RPM while weighing approximately 185 kg (408 lb). Designed for anglers and sportive cruiser use, it features oil‑injection for hassle-free fueling and Yamaha’s Prime Start™ for reliable ignition. With its reliable mid-range torque and compact, durable build, many owners describe it as “simple, reliable power” that's easy to service.

📄 Manual Details:

• Engine Type: 2-Stroke, Inline-4
• Displacement: 1710cc
• Fuel System: Carbureted
• Ignition System: CDI (Capacitor Discharge Ignition)
• Starting System: Electric start
• Cooling System: Thermostat-controlled water cooling
• Trim & Tilt: Power Trim & Tilt
• Spark Plug: NGK B8HS-10 or equivalent
• Years Covered: 1998–2006
• File Format: PDF (searchable & printable)
• Total Pages: 1000+ pages

📆 Model Years Covered:

• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 1998
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 1999
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2000
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2001
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2002
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2003
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2004
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2005
• Yamaha Outboard 115 HP 115F (S115X) 2-Stroke 2006

🔧 Manual Sections Include:

• General Information
• Model specs, maintenance charts, safety practices
• Power Unit
• Disassembly, cylinder inspection, torque specs
• Fuel System
• Carburetor service, fuel pump, and lines
• Ignition System
• CDI testing, coil troubleshooting, wiring continuity
• Cooling System
• Water flow, thermostat replacement, flushing
• Lower Unit
• Gear oil changes, impeller and shift rod repair
• Electrical System
• Wiring diagrams, rectifier/regulator tests, trim/tilt motor
• Troubleshooting
• No start, misfire, overheating, and electrical issues

💾 Format & Features:

• File Type: PDF
• Searchable: ✅ Yes
• Printable: ✅ Yes – Print full or select sections
• Device Compatibility: Windows, macOS, Android, iOS

🔍 Keywords:

Yamaha 115F manual, S115X outboard 2-stroke PDF, Yamaha 115 hp repair guide, wiring diagram, CDI testing, carburetor rebuild, 1998–2006 service manual

❓ Mini FAQ:

Q: Does this manual cover the U.S. S115X model?
A: Yes – it fully supports both Yamaha 115F and the U.S./Canada variant S115X.

Q: Can I use this for major repairs?
A: Absolutely – it covers all major systems including teardown and reassembly.

Q: Is this a digital download?
A: Yes – you’ll receive a downloadable PDF immediately after purchase.

🧭 Helpful Resources for Yamaha Outboard Owners

• Why Every Yamaha Outboard Owner Should Own a Service Manual – Find out how a downloadable repair manual can simplify maintenance and help you troubleshoot common problems on your own.
• Outboard Engine Troubleshooter – Not sure what’s wrong with your Yamaha engine? Our free tool lists common issues and DIY fixes across all major brands.

🔧 Browse More Yamaha Manuals

Note: While our manuals are designed for DIY use, they do not replace professional mechanical training. If you're unsure about a repair or your engine shows serious issues, we strongly recommend visiting a certified marine mechanic. These guides are best suited for owners with basic to moderate mechanical experience.