Yamaha Outboard 20 HP 2-Cylinder 2-Stroke 1997–1998 service repair manual

🛠️ Yamaha Outboard 20 HP 2-Cylinder 2-Stroke 1997–1998 service repair manual – PDF Download

This official Yamaha service manual covers detailed maintenance and repair procedures for the 20 HP 2-stroke outboard engine (395 cc, 2-cylinder) built from 1997 to 2002. Whether you're troubleshooting a misfire or overhauling the carburetor, this PDF is packed with step-by-step instructions and factory diagrams for both DIY owners and marine techs.

📲 Instant PDF Download – fully searchable and printable from any computer, tablet, or phone.

📖 Model Background

The Yamaha 20 HP 2-cylinder 2-stroke outboard, produced during 1997 and 1998, offered compact power for small craft operators who needed portability without sacrificing reliability. Built on a lightweight 395 cc loop-charged twin-cylinder engine with CDI ignition and oil-injection, it provided smooth 20 HP performance with excellent throttle response and low-end torque. With a dry weight of just 41–46 kg (90–101 lb), it was ideal for jon boats, dinghies, tenders, and remote-access fishing applications.

This manual includes all Yamaha 20 HP 2-stroke models from this short production range, including common variants like 20BMH, 20ELRX, and others using the same 395 cc powerhead. Every system—fuel, ignition, cooling, starting, and trim—is covered in detail in the factory procedures.

📄 Manual Details

• Engine: 2-stroke, 2-cylinder (395 cc)
• Fuel System: Carbureted
• Cooling System: Water-cooled with impeller & thermostat
• Ignition: CDI (Capacitor Discharge Ignition)
• Starting System: Manual or electric (model dependent)
• Trim & Tilt: Manual trim or optional power tilt
• Years Covered: 1997–1998
• Total Pages: 1700+ pages
• File Format: PDF (searchable & printable)
• Compatibility: Windows, Mac, iOS, Android, Linux

📆 Model Years Covered

• Yamaha Outboard 20 HP 1997
• Yamaha Outboard 20 HP 1998

📘 Manual Sections Include

• General Specifications
• Routine checks, torque specs, maintenance charts
• Engine Disassembly & Rebuild
• Crankshaft, pistons, rings, cylinder head servicing
• Fuel System Repair
• Carburetor cleaning, float setting, fuel line inspection
• Ignition System
• CDI diagnostics, coil testing, spark plug analysis
• Cooling System
• Impeller and water pump servicing, thermostat replacement
• Starting System
• Manual recoil repair, electric starter wiring & testing
• Troubleshooting Charts
• No start, overheating, power loss, fuel issues

💾 Format & Features

• File Type: PDF
• Searchable: ✅ Yes
• Printable: ✅ Yes – print full manual or by section
• Device Compatibility: Windows, Mac, iOS, Android, Linux

🔍 Keywords

Yamaha 20 HP outboard repair manual, 395 cc 2-stroke engine service PDF, 1997–1998 Yamaha 2-cylinder maintenance, carburetor overhaul, ignition troubleshooting

❓ Mini FAQ

Q: Does this manual cover all Yamaha 20 HP 2-stroke engines from 1997–1998?
A: Yes – all model variations during this period are included.

Q: Can I use this to clean the carburetor and replace the impeller?
A: Absolutely – both procedures are fully documented with photos and diagrams.

Q: How many pages is the file?
A: Over 1700 pages of detailed Yamaha factory service content.

🧭 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.