Yamaha Marine 300 HP F300L F300 350 HP F350L F350 Service Repair Manual

🛠️ Yamaha Outboard F300 F350 LF300 LF350 2008–2016 Service Repair Manual – PDF Download

🧰 This official Yamaha factory manual provides detailed service and repair instructions for Yamaha F300, F350, LF300, and LF350 4-stroke outboards. It includes complete engine overhaul procedures, fly-by-wire throttle servicing, exhaust and cooling diagnostics, lower unit maintenance, and full electrical schematics for these V6 and V8 outboards.

📲 Instant PDF Download – Works on all smartphones, tablets, laptops, and desktops
🔧 OEM factory manual used by Yamaha-certified marine technicians

📖 Model Background

The Yamaha F300 and F350 outboards are high-performance 4-stroke engines designed for offshore and sport fishing boats. The F300 is a 4.2L V6 model, while the F350 is a 5.3L V8—the first production V8 outboard engine. The "LF" designation refers to the counter-rotating variants. These models feature digital electronic controls (DEC), variable camshaft timing (VCT), and are prized for their torque, reliability, and quiet operation. Produced from 2008 to 2016, they are widely used on multi-engine setups powering large vessels across the globe.

📆 Model Years Covered:

• Yamaha 300 HP F300 Outboard – 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
• Yamaha 300 HP LF300 Outboard – 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
• Yamaha 350 HP F350 Outboard – 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
• Yamaha 350 HP LF350 Outboard – 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016

📘 Manual Details:

• Engine Types: 4-stroke, V6 (F300) and V8 (F350)
• Displacement: 4.2L (F300), 5.3L (F350)
• Fuel System: EFI (Electronic Fuel Injection)
• Ignition: TCI with ECM
• Starting System: Electric
• Drive Type: Standard and counter-rotating (LF models)
• Cooling: Water-cooled with thermostats
• Controls: Digital Electronic Control (DEC)
• Lubrication: Wet sump
• File Type: PDF (Digital Download)
• Pages: 450+ pages of OEM content
• Language: English

📚 Manual Sections Include:

• General Information
• Model codes, safety, tools, torque values
• Specifications
• Performance data, clearances, bolt specs
• Periodic Maintenance
• Oil change, fuel filter, belts, spark plugs, thermostat check
• Fuel System
• Fuel rail, high-pressure pump, injector testing, vapor separator
• Power Unit
• Camshafts, pistons, crankshaft, VCT system, exhaust valves
• Lower Unit
• Water pump, gearcase inspection, seals, bearing replacement
• Bracket Unit
• Trim/tilt system, brackets, engine mounting hardware
• Electrical System
• ECM testing, charging circuit, sensors, battery connections, starter
• Troubleshooting
• Fault codes, limp mode conditions, wiring diagrams, voltage checks

💾 Format & Compatibility:

• File Type: PDF (Digital Download)
• Searchable & Bookmarked: ✅ Yes
• Printable: ✅ Yes – full manual or selected sections
• Device Compatibility: Windows, macOS, iOS, Android, Linux

🔍 Keywords:

Yamaha F300 F350 LF300 LF350 4-stroke outboard service manual PDF, Yamaha V6 V8 DEC repair manual, electronic fuel injection troubleshooting, fly-by-wire engine guide, wiring diagrams, 2008 2009 2010 2011 2012 2013 2014 2015 2016

❓ Mini FAQ:

Q: Is this the official Yamaha factory service manual?
A: Yes, this is the OEM manual used by Yamaha-authorized marine service professionals.

Q: Does it cover both V6 (F300) and V8 (F350) engines?
A: Yes, the manual provides separate sections for both engine platforms with complete service procedures.

Q: Can I view and print the manual on any device?
A: Absolutely. The PDF is searchable, printable, and compatible with all smartphones, tablets, and computers.

🧭 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.