Mercury 15 HP BigFoot 4-Stroke Outboard 1999–2003 Service Repair Manual

🛠️ Mercury 15 HP BigFoot 4-Stroke Outboard 1999–2003 Service Repair Manual – PDF Download

🧰 OEM Factory Workshop Manual – Covers Mercury 15 HP BigFoot Four Stroke Outboard Engines (323 cc, Serial No. 0G590000 and up)
📲 Instant PDF Download – Fully compatible with Windows, macOS, iOS, Android, and Linux
🔧 Designed for technicians, DIY owners, and marine service professionals

🔍 Model Background

The Mercury 15 HP BigFoot 4-stroke outboard (1999–2003) was a high-thrust variation of Mercury’s early small 4-stroke lineup, designed specifically for pushing heavier boats such as pontoons, sailboats, and utility skiffs. Based on the same 294cc 2-cylinder 4-stroke platform as the standard 15 HP model, the BigFoot featured a larger gearcase and oversized propeller for enhanced low-end torque and better control under load.

This model used a carbureted fuel system, CDI ignition, and overhead camshaft (OHC) design, delivering smooth power and quieter operation than 2-stroke counterparts. The BigFoot’s lower 2.42:1 gear ratio allowed it to swing a larger-diameter prop, making it particularly effective in high-drag or displacement hulls.

Available in long-shaft and extra-long-shaft configurations with both tiller and remote control options, the 1999–2003 Mercury 15 HP BigFoot 4-stroke became a go-to solution for boaters needing greater thrust and control in a small, efficient 4-stroke package.

📆 Model Years Covered:

• Mercury 15 HP BigFoot – 1999
• Mercury 15 HP BigFoot – 2000
• Mercury 15 HP BigFoot – 2001
• Mercury 15 HP BigFoot – 2002
• Mercury 15 HP BigFoot – 2003

📘 Manual Details:

• Model: 15 HP BigFoot Four Stroke (2-cylinder, 323 cc)
• Gear Ratio: 2.42:1 (BigFoot high-thrust gearcase)
• Serial Numbers: 0G590000 and up
• Document Type: OEM Service & Repair Manual (Factory Shop Manual)
• Language: English
• Publisher: Mercury Marine
• Pages: 300+ with factory diagnostics, torque specs, and system diagrams

📚 Manual Sections Include:

• General Information & Specifications
• Ignition & Charging System
• Flywheel, stator, ignition coil, voltage regulator, spark testing
• Fuel System
• Carburetor tuning, primer bulb, fuel pump, idle mix, float level
• Powerhead
• Pistons, crankshaft, camshaft, valve lash, timing belt alignment
• Cooling System
• Impeller, thermostat, passages, cooling water diagnostics
• Midsection & Exhaust
• Mount brackets, vibration isolators, exhaust routing
• Gearcase Assembly
• BigFoot gearset, propshaft, water pickup, seals, shift rod
• Control Linkage & Adjustment
• Throttle/shift cable installation, idle RPM settings
• Wiring Diagrams
• Ignition and charging schematics with color-coded references

💾 Format & Compatibility:

• File Format: PDF
• Searchable & Bookmarked: ✅ Yes
• Printable: ✅ Yes – Entire manual or specific sections
• Compatible With: Windows, macOS, iOS, Android, Linux
• Delivery: 📩 Instant Digital Download

🔍 Keywords:

Mercury 15 HP BigFoot 4-Stroke service manual PDF, 1999–2003 repair guide, high-thrust gearcase, carburetor tuning, valve specs, wiring diagrams, OEM outboard manual

❓ Mini FAQ:

Q: Is this the official Mercury factory manual?
A: Yes – this is the same OEM service manual used by authorized dealers and professional mechanics.

Q: Does this include the BigFoot gearcase system?
A: Yes – it covers the 2.42:1 high-thrust gearcase used on BigFoot models.

Q: Can I use the manual on mobile devices?
A: Absolutely – the PDF is fully compatible with all major platforms and devices.

🧭 Helpful Resources for Mercury Outboard Owners

• Why Every Mercury Mariner Owner Needs a Service Manual for At-Home Repairs – Learn how a digital service manual can save you time and money on common DIY maintenance tasks.
• Outboard Engine Troubleshooter – Not sure what’s wrong with your engine? Our free troubleshooting guide covers common issues across Mercury Outboards and more.

🔧 Browse More Mercury 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.