Our Services

Three white boats on stands in front of a building with blue sky.

Outboard Motor Repair in Gonzales, LA

At Casey Marine, we deliver comprehensive outboard motor repair and boat engine services designed to keep your vessel running reliably on every trip. Based in Gonzales, LA, our shop is equipped to handle everything from standard tune-ups to full engine rebuilds and performance upgrades. We specialize in both 2-stroke and 4-stroke motors, working with all major brands including Yamaha, Mercury, Suzuki, Honda, Evinrude, and Johnson.



Whether you're prepping for the season, troubleshooting an issue, or upgrading your setup, we provide honest guidance and expert results—every time.

Complete Outboard Motor Services

Shipyard worker inspecting a vessel's hull and propellers. Tools on a cart.
Crossed wrench and screwdriver icon.

Outboard Tune-Up & Preventative Maintenance

Routine maintenance keeps your outboard engine in peak condition and helps prevent costly breakdowns. Our tune-up service includes:

  • Oil and filter changes
  • Spark plug inspection and replacement
  • Fuel and air filter replacement
  • Compression tests
  • Complete system inspection

We recommend regular service intervals based on your motor’s age, hours, and usage. Whether you're running a Yamaha 150 or a Mercury Pro XS, we’ll help you maintain long-term performance.

Close-up of a black engine with spark plugs and a regulator. Wires and connectors are visible.
Black power plug and electrical symbol.

Outboard Diagnostics & Electrical Repair

Modern outboards rely on complex electrical and sensor systems. If your motor is hard to start, losing power, or giving warning codes, our team provides:

  • Full-system electrical diagnostics
  • Battery, alternator, and charging system testing
  • Ignition, wiring, and sensor repair
  • Trim and tilt troubleshooting

From basic wiring fixes to full system rewiring, we’ll track down the issue and get your motor running right.

Boat motor mounted on a small boat, overlooking a calm bay with boats and buildings.
Hand holding a wrench inside of a gear.

Lower Unit Service & Repair

Lower unit damage can lead to serious performance issues or complete motor failure. We provide:

  • Propeller shaft repair
  • Gear replacement
  • Seal and bearing replacement
  • Pressure testing
  • Complete lower unit replacement (if needed)

If your gearcase is leaking oil, making noise, or not shifting properly, we’ll evaluate it and offer the best long-term fix.

Black boat motor with surrounding wires, on a wooden dock next to water.
Black icon of an electric motor with a gear, representing automation or industry.

Powerhead Rebuilds & Engine Overhaul

When compression drops or major damage occurs, rebuilding your outboard’s powerhead may be more cost-effective than replacing the entire motor. Our engine rebuild services include:

  • Cylinder inspection and honing
  • Piston and ring replacement
  • Crankshaft and connecting rod servicing
  • Gasket kits and resealing
  • Full reassembly and test-run

We handle complete rebuilds in-house and provide straight answers about whether it’s worth rebuilding or replacing.

Boat engine in an enclosed compartment with wooden interior.
Black gas pump nozzle with a teardrop shape.

Fuel System Repair & Injector Cleaning

Poor fuel flow can cause hesitation, misfires, and poor fuel economy. We service:

  • Clogged or dirty fuel injectors
  • Carburetor rebuilds and cleaning
  • Fuel pump replacement
  • Fuel line and filter replacement

We also offer outboard carburetor cleaning and fuel system flushes to restore smooth operation and reliability.

Mechanic in blue overalls inspecting a boat's propeller shaft with a flashlight, tools on mat.
Black and white graphic of a square cooling fan.

Cooling System Repair

Overheating is one of the most common and dangerous problems for outboard motors. If you’ve noticed high temp warnings or water flow issues, we provide:

  • Impeller and water pump replacement
  • Thermostat testing and replacement
  • Cooling line inspections
  • Blockage removal

If your motor isn’t peeing or runs hot at idle, let us inspect it before it causes major damage.



A person paints a blue boat, scaffolding surrounds it, another blue boat is in the background.
Black cargo ship icon.

Complete Outboard Rebuilds

For older engines with internal wear or major failure, we offer full outboard rebuilds. These are often more affordable than new replacements and allow you to extend the life of your current boat setup. We’ll assess the cost-benefit and walk you through the process clearly.

Boat motor with spark plug wires, various hoses and wires, outdoors.
Engine with a warning light.

Custom Engine Performance Builds

Want more speed, torque, or power? We offer custom outboard builds for serious anglers, racers, and performance enthusiasts. We’ll help design a build that matches your hull, load, and goals—and install it with precision.

Boats parked in front of a boat repair shop, under a blue sky, with trees in the background.

Additional Services & Installations

In addition to mechanical repair, we offer accessory installation and performance upgrades:

Black checkmark.

Jack Plate Installation

As an authorized dealer for Bob’s Machine Shop, we install hydraulic jack plates that improve performance, shallow-water capability, and handling.

Black check mark.

Trolling Motor Setup

We install and wire trolling motors, battery systems, and control modules for freshwater and saltwater setups.

Black check mark.

Marine Lighting

We install PlashLights LED lighting systems for decks, interiors, trailers, and underwater use.

Black checkmark on a white background.

Power-Pole Installation

Shallow water anchor systems available for fishing setups—installed with proper rigging and controls.

Black check mark on white background.

Propeller Sales & Rigging

As a PowerTech Propeller dealer, we help you choose the right pitch and blade for your engine and boat.

Black checkmark on a white background.

Marine Batteries

We stock and install Interstate and Lithium marine batteries for high-demand systems.

Emergency & Rush Services

Boat trouble before a trip or tournament? We offer limited emergency and rush services based on technician availability. If your motor needs immediate attention, call us at (225) 647‑5746 and we’ll do our best to accommodate you quickly.

Boat Brands  and Engines We Service

We specialize in outboard motor repair for:

  • Yamaha
  • Mercury
  • Suzuki
  • Honda
  • Evinrude
  • Johnson

Whether you're running a bass boat, bay boat, pontoon, or flats boat, our team knows how to service and support your power system properly.

White sailboat on supports, blue sky, wooden fence background.

Ready to Schedule Service?

Call us today or send an email to request an appointment or a quote. Whether your boat needs a tune-up, full rebuild, or upgrade installation, Casey Marine delivers expert results that keep you boating with confidence.