About Us
Built on Precision, Driven by Performance
At Fuel Injector Man, Inc., our mission is simple—help engines perform exactly as they were designed to. We specialize in professional fuel injector cleaning and flow testing for marine, automotive, and powersports applications. Based in Naples, Florida, we’ve built our reputation on honest results, consistent performance, and a commitment to the boating and motorsports communities we serve.
Founded on decades of hands-on experience, our company exists for one reason: to keep your engine reliable. Whether you’re running a Yamaha 4-stroke, a Mercury OptiMax, an Evinrude E-TEC, ATVs, UTVs, and other powersports or a high-performance automotive setup, properly serviced injectors make all the difference.
Our Professional Process
Our process is built around accuracy and repeatability:
Visual and Electrical Inspection
Each injector is labeled and checked for external wear, leaks, or electrical faults.
Baseline Flow Testing
Flow rates and spray patterns are measured before cleaning to identify restriction or imbalance.
Ultrasonic Cleaning & Reverse Flushing
Specialized ultrasonic agitation removes internal buildup; reverse flushing clears contaminants from the inlet side.
Filter and O-Ring Replacement
Each injector receives new filters, O-rings, and bushings to ensure leak-free operation.
Post-Clean Flow Verification
Injectors are tested again across multiple duty cycles to confirm matched performance.
Documented Results
Customers receive a printed report showing before/after flow data and variance across all injectors.
Our Story and Mission
Fuel Injector Man, Inc. began with a simple idea—We offer precision level injector service locally, and/or nationwide. Boaters in Southwest Florida needed fast turnaround, reliable documentation, and someone who understood both outboard systems and performance expectations.
What started as a small service for local boat owners quickly expanded through word of mouth. Mechanics, tuners, and marine shops began sending injectors for testing and cleaning because they saw the measurable difference in flow balance and performance. Over time, we invested in advanced ultrasonic equipment, dedicated fixtures for HPDI and OptiMax injectors, and a full flow-bench testing system to verify every result.
Our mission today remains unchanged: provide transparent, data-driven injector service that maximizes performance, reliability, and efficiency—so you spend less time troubleshooting and more time on the water.
Why Injector Cleaning Is Essential
Fuel injectors are precision components. Even slight internal buildup can cause spray distortion, reduced flow, or imbalance between cylinders. When one cylinder runs lean and another rich, you lose efficiency, power, and reliability.
For marine engines, ethanol-blended fuel and humidity are constant challenges. Long-term storage causes varnish and corrosion. Automotive and powersports engines face their own issues—short-trip operation, poor fuel quality, or high heat cycles that bake deposits onto injector tips.
Cleaning and flow testing restores each injector to consistent performance. The result is better throttle response, smoother idle, improved fuel economy, and reduced risk of detonation or engine damage. It’s preventative maintenance that directly improves performance and engine life.
What Sets Us Apart
Marine-Focused Expertise
We are one of the few injector facilities in Florida that specializes primarily in marine and powersports injectors.
Data-Driven Documentation
Every job includes before-and-after flow reports with variance readings for full transparency.
Fast Turnaround
Local Naples customers benefit from same-day or next-day service on most marine sets.
Tailored Procedures
We use different cleaning and testing methods for HPDI, OptiMax, and E-TEC injectors to ensure accuracy and safety.
No Diesel Work
We focus exclusively on gasoline injectors to maintain consistent quality and specialization.
Expertise You Can Trust
Owner Jeff Koski brings extensive mechanical knowledge and years of experience servicing Yamaha, Mercury, Evinrude, Honda, Suzuki, Mercruiser, and Volvo Penta systems. His hands-on understanding of outboard engines—especially complex platforms like HPDI, OptiMax, and E-TEC—allows Fuel Injector Man, Inc. to deliver professional results.
Each injector is treated as a precision instrument. No shortcuts, no guessing—just measurable performance improvement backed by real data.
Supporting Marine and Motorsports Enthusiasts
From offshore fishing captains to personal watercraft owners, our clients share a passion for reliable performance. We support recreational and professional operators across Naples, Bonita Springs, Fort Myers, and the surrounding Gulf Coast area. Beyond marine systems, we also help automotive tuners, ATV and motorcycle riders, and RV owners restore the performance they expect.
Our work doesn’t end when injectors leave the bench—we offer guidance on installation, storage tips, and preventive care to extend injector lifespan.
Frequently Asked Questions
How often should I have my injectors cleaned?
For marine applications, we recommend every 200–300 hours or once a year, especially if fuel sits for extended periods.
Do you test injectors before cleaning?
Yes. Every injector is flow tested before cleaning to establish baseline data and identify imbalances.
Do you work on diesel injectors?
No. We specialize strictly in gasoline injectors for marine, automotive, and powersports engines.
Can I ship my injectors to you?
Absolutely. Ship your injectors with your contact info and engine details to 5307 Shirley Street, Naples, FL 34109. We’ll contact you upon arrival and confirm turnaround time.
Contact Fuel Injector Man, Inc.
For professional fuel injector cleaning in Naples, FL, call or visit Fuel Injector Man, Inc. today. We’re here to help you restore performance, fuel efficiency, and reliability to your marine or automotive engine.
