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Marine Injector Cleaning & Fuel System Service in Fort Myers, FL

Rough idle, hard starts, bogging under throttle? In Southwest Florida, the fuel system is the first suspect. We provide mobile marine injector cleaning and complete fuel system service for outboard, inboard, and diesel engines at your dock across Fort Myers, Cape Coral, Naples, and SWFL. Most fuel problems are cured in one visit, without replacing a single injector.

Why Florida Kills Fuel Systems Faster Than Anywhere

Ethanol gasoline and Florida heat are a brutal combination. E10 fuel absorbs moisture from our humid air, then separates in the tank. The fuel degrades and varnishes in weeks, not months. And SWFL boats sit: between trips, through summer heat, through hurricane holds. Every idle week, that degrading fuel is coating your injectors, gumming your VST or fuel rail, and growing sludge in the tank bottom.

The symptoms arrive gradually, so owners adapt without noticing. Idle gets lumpy. Cold starts take longer. The top end feels soft. Fuel burn creeps up. Then one day a clogged injector leans out a cylinder, and a simple cleaning problem has become an engine repair.

Our fuel system service attacks the whole chain, not just one component:

Injector Cleaning

Injector & Fuel Service for Leading Marine Brands

Every manufacturer's fuel system concentrates its problems in a different place, and knowing where saves you money.

Injector cleaning and flow service

ultrasonic and on-engine cleaning for gas outboard and inboard injectors, restoring spray pattern, idle quality, and throttle response

Marine diesel injector service

diesel injectors live a harder life. We service and test them, and coordinate rebuilds for common marine diesel platforms

VST and fuel rail service

the vapor separator tank is where outboard fuel problems concentrate. We clean the tanks, screens, and high-pressure filters that owners never see

Fuel filtration

primary and secondary filter and water separator replacement, plus upgrading boats that left the factory under-filtered for Florida conditions

Fuel polishing and tank cleaning

when the tank itself has water, sludge, or separated ethanol, cleaning injectors alone treats the symptom. We assess tank condition, and for boats needing full polishing or tank cleaning in Fort Myers we manage the process end to end, then recommission the engine side afterward

Fuel quality testing

water detection and visual analysis before we recommend anything

Test My Fuel First

Fuel Problems Are Home Turf for Us

A big share of the "engine problems" we get called for in Fort Myers turn out to be fuel problems wearing a disguise. After 15+ years working Gulf Coast boats, our lead technician Cody can usually predict the tank's condition from three questions: how old is the fuel, how long does the boat sit, and where is it stored. That pattern knowledge is why our fuel diagnoses tend to be fast and our fixes tend to hold.

Island Marine Repair is a fully mobile operation. The injector service, the filtration work, and the fuel testing all happen at your dock or driveway. We are not here to sell you injectors. More often than not, we are saving you from buying them. Learn more about how we work on our About Us page.

Why Choose Island Marine Repair LLC?

  • Whole-chain fuel service, from tank condition through injector tips, not just one link
  • Gas, ethanol-damaged, and diesel systems all handled
  • Cleaning-first philosophy: injectors are cleaned and flow-verified before replacement is ever discussed
  • Mobile across Fort Myers, Cape Coral, Naples, Punta Gorda, and the islands
  • 4.8-star rated on Google, with fair pricing cited again and again
Get an Honest Assessment
Cody, owner of Island Marine Repair, holding a peacock bass while out on the water in Southwest Florida

Trusted for Honest Fuel System Answers

The review pattern we are proudest of: customers who came expecting an expensive repair and left with a cleaned fuel system and a working boat. Fuel work rewards honesty. A cleaning that fixes the problem earns a customer for life. An unnecessary injector set earns a refund demand. Fort Myers boaters have noticed which way we operate.

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David Ferrin profile picture
David Ferrin
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Cody is a great marine mechanic and has repaired my boat several times. Great guy, fair prices, and is a great communicator when it comes to work my craft needs and work it doesn’t. Highly recommend!
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Bryan Stone profile picture
Bryan Stone
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These guys did a great job we were stranded with both motors not working on a week long vacation. They showed up diagnosed the issues within a couple minutes and got parts ordered and installed in no time. The motor run better than they ever have. I cannot express how impressed I was by their work and price. Strongly recommend.
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Bruner Stockstill profile picture
Bruner Stockstill
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Had a warning light come on for low oil pressure. Cody was out quickly and was able to fix the issue in minutes. Also had him return to do a full engine service. He found some issues I didn’t know about and I am now back on the water. 2019 Pathfinder 2500 with Yamaha 300
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Timothy Carmody profile picture
Timothy Carmody
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While on vacation, my boat had a fuel leak, and I needed help quickly. Cody at Island Marine Repair promptly assisted, getting my boat running again. He was communicative, knowledgeable, and easy to work with. I highly recommend Island Marine Repair!
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Matthew Gramstrup profile picture
Matthew Gramstrup
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Cody and his team performed flawlessly. Came right to my house, knocked everything out way quicker than I would have ever expected, all while explaining the process to me. Pricing was extremely fair and my boat is running perfectly.
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matt celano profile picture
matt celano
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Cody was fast, prompt and transparent. Did a great job fixing my steering and 350 hour service interval on my 350 Verado. He is now my go to for any maintenance on my boat!
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James Deiner profile picture
James Deiner
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One of my Tohatsu 150’s shut down after overheating. Cody and Caleb came out on their repair boat and serviced both lower units while the boat was on my lift. Cody also identified the shift and throttle cables were in really bad shape and came back to replace them. He probably saved us a tow back in or worse. Island Marine has the unique ability to arrive by service truck or boat and they know what they are doing. On a side note both Cody and Caleb introduced themselves and shook my hand when we first met.

Our Work

Fuel System Jobs Across SWFL

VST cleanouts on lift-kept Yamahas, ethanol-separation recoveries in Cape Coral, diesel filtration upgrades on Punta Gorda trawlers. Documented fuel system work below.

Fuel & Injector Questions, Answered

The classic signs are a rough or hunting idle, hard starts (especially after the boat has been sitting), hesitation under throttle, reduced top-end RPM, or fuel burn that has crept upward over the season. If your boat sat for more than a month with ethanol fuel aboard, cleaning is a smart preventive move even without symptoms, because varnish is already forming whether you can feel it yet or not.
In most gasoline marine engines, yes, and by a wide margin. Professional cleaning and flow verification restores the original spray pattern and performance in the great majority of cases, at a fraction of the cost of a new injector set. We only recommend replacement when an injector fails flow testing after cleaning, which means you never pay for parts your engine did not need. That is our standing policy, not a sales pitch.
Yes. We provide diesel injector service, fuel filtration, and fuel quality work for Yanmar, Volvo Penta, and other common marine diesel platforms. Diesel injection systems tolerate dirty fuel even worse than gas engines do, so if you are seeing smoke, hard starts, or power loss on a diesel, the fuel system is where the investigation should start, and we bring that investigation to your slip.
We handle the complete picture. Tank condition assessment is part of every fuel system visit, and for tanks that need full polishing or cleaning we manage the entire job, tank side and engine side, so you are never stuck coordinating two contractors who don't talk to each other. When the tank is clean, we recommission the engine's fuel system so the whole chain is verified, not just one end of it.
Yes, and it is one of the most common root causes of major engine damage we see in SWFL. A clogged injector leans out its cylinder, and sustained lean running destroys pistons. Water in the fuel corrodes injection components from the inside out. This is exactly why we treat fuel service as prevention: it is the least expensive protection your engine can get, and the numbers on the alternative are not close.

Marine Injector Cleaning Near You

Cape Coral

Canal boats that sit through the summer are ethanol-separation central, and Cape Coral is where we see the pattern most. We recover them at the dock, from tank assessment through injector flow verification, anywhere across the canal system.

Request Cape Coral dispatch

North Fort Myers

Dockside fuel diagnostics and VST service along the river's north side, where lift-kept boats, long idle periods and no-wake commutes make fuel system work a constant, predictable need we schedule for weekly.

Request North Fort Myers dispatch

Naples

Fuel system service for high-hour offshore outboards, where a lean cylinder at wide-open throttle forty miles out is not a risk any owner should be running. Pre-season fuel checks are the cheapest insurance in the fleet.

Request Naples dispatch

Punta Gorda

Diesel filtration and injector service for the Charlotte Harbor cruising fleet, where clean fuel is the difference between a season on the water and a tow home. Tanks assessed honestly, filtration upgraded where Florida demands it.

Request Punta Gorda dispatch

Sanibel

Island fuel system calls, including the post-storage recommissioning that seasonal owners need most: stale fuel assessed, systems cleaned and engines proven before the first island season trip.

Request Sanibel dispatch

Captiva

Full fuel service dispatched to outer-island docks, because bad fuel does not care how beautiful the view is. Tank-to-injector service with everything needed carried aboard.

Request Captiva dispatch

Pine Island

St. James City and Bokeelia boats get complete dockside fuel service without hauling across Matlacha Pass. Hard-fished island outboards earn their injector cleanings honestly, and we keep them on schedule.

Request Pine Island dispatch

Estero

Fuel system cleaning and filtration for the Estero River and bay-access fleet, where the idle-speed river commute is precisely the duty cycle that gums injectors on otherwise healthy engines.

Request Estero dispatch

Bonita Springs

Injector and fuel service along the Imperial River and Bonita's gulf-access canals, with special attention to seasonal boats whose fuel sat through the hot months while their owners were north.

Request Bonita Springs dispatch

Englewood

Lemon Bay boaters get the same complete fuel system service, mobile, without the drive to Lee County: injectors, filtration, tank assessment and honest answers at your own dock.

Request Englewood dispatch

Running rough? Check the fuel before buying parts.

One dockside fuel system visit answers it, and most are completed the same day they start.

Call Now Contact Us
(239) 839-6908