Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 1998–2006 Service Repair Manual

🛠️ Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 1998–2006 Service Repair Manual – PDF Download

🔧 This official Yamaha service manual delivers complete maintenance and repair guidance for the 115 HP 115B 2-stroke outboard engine, including its U.S. and Canada counterpart B115X. It covers all model years from 1998 to 2006 and includes step-by-step instructions, exploded diagrams, and factory specifications for all systems.

📲 Instant PDF Download – Fully indexed and searchable on any phone, tablet, or desktop.

📖 Model Background

The Yamaha 115B (also known as B115X) 2‑stroke outboard was produced from 1998 through 2006 as part of Yamaha’s dependable 115 HP inline‑4 series. Featuring a 1.7 L carbureted loop‑charged engine with CDI ignition, oil‑injection, and electric start with Prime Start™, it delivers a crisp 115 HP at around 5,000 RPM. Weighing approximately 185 kg (408 lb) with tilt/trim, it balances robust power with manageable size — praised for reliability, ease of service, and longevity by many owners. Forums consistently state: “Reliable, easy to service and much cheaper than the 4‑stroke”.

📄 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: Water cooled with thermostat
• 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 115B (B115X) 2-Stroke 1998
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 1999
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2000
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2001
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2002
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2003
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2004
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2005
• Yamaha Outboard 115 HP 115B (B115X) 2-Stroke 2006

🔧 Manual Sections Include:

• General Information
• Model identification, routine service intervals, safety tips
• Power Unit
• Crankshaft and piston inspection, compression testing
• Fuel System
• Fuel pump and carburetor service, line routing
• Ignition System
• CDI diagnostics, ignition timing procedures, spark tests
• Cooling System
• Water pump overhaul, thermostat and impeller replacement
• Lower Unit
• Disassembly, gearcase inspection, oil seal servicing
• Electrical System
• Wiring schematics, trim/tilt motor, charging system
• Troubleshooting
• No-start conditions, fuel starvation, overheating

💾 Format & Features:

• File Type: PDF
• Searchable: ✅ Yes
• Printable: ✅ Yes – Full or partial
• Device Compatibility: Windows, macOS, iOS, Android, Linux

🔍 Keywords:

Yamaha 115B outboard repair manual, B115X 2-stroke service guide, Yamaha 115HP engine PDF, carburetor repair, ignition troubleshooting

❓ Mini FAQ:

Q: Is this the original Yamaha factory manual?
A: Yes – it's the genuine OEM repair manual used by Yamaha technicians.

Q: Does it include everything for overhauls?
A: Yes – full disassembly, specs, torque values, and wiring diagrams are included.

Q: Can I print it or use it offline?
A: Yes – it's fully printable and works offline after download.

🧭 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.