Mercury 40 HP EFI BigFoot 4 Stroke 2011–2015 Service Repair Manual – PDF Download

🛠️ Mercury 40 HP EFI BigFoot 4 Stroke 2011–2015 Service Repair Manual – PDF Download

🧰 OEM Factory Workshop Manual – Covers Mercury 40 HP EFI BigFoot FourStroke Outboards (Serial No. 1C104334 and up)
📲 Instant PDF Download – Works with Windows, macOS, iOS, Android, and Linux
🔧 Trusted by Mercury-certified technicians, mechanics, and boat owners worldwide

🔍 Model Background

The Mercury 40 HP EFI Big Foot 4-Stroke outboard (2011–2015) was engineered for applications that demanded more thrust at lower speeds — such as pontoons, heavy-duty utility boats, and large aluminum fishing rigs. Built on Mercury’s proven 995cc inline-3 four-stroke platform, the Big Foot variant featured a larger gearcase and higher thrust propeller similar to those found on 90–115 HP models.

This model included Electronic Fuel Injection (EFI) for smoother starts, better fuel economy, and reliable all-season performance. With its lower 2.33:1 gear ratio, the Big Foot delivered superior pushing power compared to the standard 40 HP version, making it especially effective on heavy or high-drag hulls.

Paired with mechanical controls and compatible with Mercury’s Smart Craft systems, the 40 HP Big Foot was also designed with ease of maintenance in mind — featuring a no-spill oil filter, color-coded service points, and a maintenance-free valve train. Though eventually phased out in favor of Mercury’s Command Thrust models, the 2011–2015 Big Foot remains a favorite among boaters who need reliable low-end torque in a compact four-stroke package.

📆 Model Years Covered:

• Mercury 40 HP EFI BigFoot – 2011
• Mercury 40 HP EFI BigFoot – 2012
• Mercury 40 HP EFI BigFoot – 2013
• Mercury 40 HP EFI BigFoot – 2014
• Mercury 40 HP EFI BigFoot – 2015

📘 Manual Details:

• Model: Mercury 40 HP EFI BigFoot Four Stroke (3-Cylinder)
• Serial Numbers: 1C104334 and above
• Engine Type: EFI, 4-Stroke, BigFoot gearcase
• Manual ID: 90-883064R03
• Document Type: OEM Service & Repair Manual
• Publisher: Mercury Marine
• Language: English
• Pages: 500+ with full diagnostics, teardown guides, and schematics

📚 Manual Sections Include:

• General Information & Specifications
• Ignition & Charging System
• Switch boxes, stators, timing adjustment
• Fuel System
• Carburetors, fuel pump, primer bulb, link & sync
• Powerhead
• Cylinder block, pistons, crankshaft, gaskets
• Cooling System
• Thermostat, impeller, water passages
• Midsection & Power Trim
• Tilt system, mounts, bushings
• Gearcase Assembly
• Propshaft, seals, shimming, water pickup
• Control Linkage & Adjustment
• Shift/throttle linkage, idle stop
• Wiring Diagrams
• Full schematics with color and component references

💾 Format & Compatibility:

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

🔍 Keywords:

Mercury 40 HP EFI BigFoot FourStroke service manual PDF, 2011–2015 outboard repair, EFI fuel system, ignition, gearcase, cooling system, wiring schematics

❓ Mini FAQ:

Q: Is this the complete OEM factory manual?
A: Yes – this is the original service manual issued by Mercury Marine for BigFoot EFI models.

Q: Are wiring diagrams and EFI fuel system covered?
A: Absolutely – includes color-coded wiring, fuel pump specs, and diagnostic procedures.

Q: Can I use this PDF on my phone or tablet?
A: Yes – it's mobile-friendly, fully searchable, and compatible with all 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.

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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.