Expert marine and automotive fuel injector cleaning in Naples, FL. Reliable flow testing for all top feed, and side feed fuel injectors.

Fuel Injector Man, Inc

Precision Marine Injector Cleaning

Expert ultrasonic cleaning and flow testing for Yamaha, Mercury, Evinrude, and more—restoring smooth performance and fuel efficiency.

Full-Service Injector Restoration

From outboard motors to powersports engines, we flow test each injector and record the readings before cleaning. Then, we clean your injectors in an ultrasonic tank to ensure factory-level performance.

Trusted Naples FL Injector Experts

Local professionals providing accurate, affordable fuel injector cleaning and flow testing backed by years of marine experience.

Restoring Precision Performance to Every Engine

At Fuel Injector Man, Inc., we specialize in precision fuel injector cleaning and flow testing for marine, automotive, and powersports engines. Located in Naples, Florida, we’ve built a trusted reputation among boaters, mechanics, and performance enthusiasts who rely on our expert service to keep engines running at peak performance. Whether you run a Yamaha, Mercury, Honda, Suzuki, Evinrude, Mercruiser, or Volvo Penta, our job is to make sure every drop of fuel reaches your cylinders cleanly, evenly, and efficiently.

For years, customers throughout Southwest Florida have depended on us for professional injector restoration that improves fuel economy, smoother idling, easier starting, and reliable top-end power. Our advanced cleaning and flow-testing process ensures your injectors perform exactly as the manufacturer intended—so your engine runs stronger and lasts longer.

Advanced Cleaning & Flow Testing Process

At Fuel Injector Man, Inc., we don’t rely on shortcuts or “in-tank” cleaners. Every injector undergoes a multi-step ultrasonic cleaning and verification process designed for accuracy and repeatability.

Our process includes:

Each injector is labeled, visually inspected for corrosion or leaks, and electrically checked for correct resistance.

We record each injector’s as-received flow rate and spray pattern to document any existing imbalance on non e-tech injectors before calibration and service.

Deposits, varnish, and microscopic debris are removed using frequency-tuned ultrasonic agitation and reverse-flow solvents that restore internal passages.

We install new internal filters and o-rings to ensure leak-free operation.

Each injector is retested at multiple duty cycles to confirm balanced flow and atomization.

You receive a printed report showing before-and-after flow values so you can see the measurable improvement.

Why Clean Fuel Injectors Matter

Every gasoline engine depends on consistent injector flow for precise air-fuel ratios. When injectors clog or their spray patterns deteriorate, cylinders run unevenly, combustion becomes inefficient, and power drops off. For marine engines, the impact is even greater: long storage periods, humidity, and ethanol-blended fuels accelerate corrosion and deposit buildup.

Dirty injectors lead to:

• Hard starting or rough idle
• Hesitation or “flat spots” under throttle
• Poor fuel economy and excessive smoke
• Misfires or detonation under load
• Risk of piston or valve damage from lean operation

By cleaning and testing injectors professionally—not just with additives—you restore proper atomization, correct flow, and uniform fueling. The difference is instantly noticeable on the water or road: smoother idle, faster throttle response, better economy, and peace of mind knowing each cylinder is balanced.

Complete Range of Services

Our Naples shop provides a full lineup of gasoline injector services, including:

• Marine Fuel Injector Cleaning – Specialized ultrasonic and flow testing for Yamaha, Mercury, Honda, Suzuki, Evinrude, and Volvo Penta systems.
• Automotive Fuel Injector Cleaning – Off-engine service for port-fuel injectors to restore smooth idle and power.
• Motorcycle, ATV, and Side-by-Side Injector Cleaning – Ideal for powersports engines that sit seasonally.
• RV and Generator Injectors – Prevents hard starting and surging after storage.
• Evinrude E-TEC Injector Service – We prefer to clean complete sets. If you have any questions, please feel free to reach out.

Every service includes new O-rings and filters, leak testing, and a complete before/after flow report.

Pricing Transparency and Value

Our pricing is straightforward and competitive.

1. Top-feed marine injectors: $20 per injector
2. Side-feed and OptiMax injectors: $26 per injector
3. Evinrude E-TEC injectors: $62 per injector
4. Specialized GDI injectors: $30 per injector (higher than standard $20 top-feed due to extra work required)

All prices still include ultrasonic cleaning, filter and O-ring and bushings replacement, and a verified flow report.

Experience That Keeps You on the Water

Owner-operator Jeff Koski bring years of hands-on expertise to every job. Each injector that leaves our shop has been inspected, tested, and certified to deliver accurate flow. Boaters and technicians alike appreciate our thorough communication, clear documentation, and fast turnaround times.

Our mission is simple: to keep you running stronger, longer, and more efficiently. We believe precision is the foundation of engine health—and that starts at the injector.

Frequently Asked Questions

Contact Fuel Injector Man, Inc.

For reliable, professional fuel injector cleaning in Naples, FL, contact Fuel Injector Man, Inc. today.