Forked River Diesel & Generator
(609) 242-8448

Authorized Yanmar Marine Engine Repair & Service in New Jersey

As a leader in reliable, lightweight, and efficient marine diesel technology, Yanmar requires precision care from technicians who understand their unique engineering. Whether you are powering a offshore sailboat or a high-speed cruiser, our Forked River team provides factory-standard service to keep your Yanmar running smoothly.

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Specialized Yanmar Maintenance & Repair

We provide end-to-end support for the entire Yanmar Marine lineup, from small auxiliary engines to high-performance diesel powerplants.

  • Initial 50-Hour Service: Critical for new owners to validate warranty and ensure proper engine break-in.
  • Saildrive Service & Sealing: Expert maintenance for SD20, SD50, and SD60 units, including zinc replacement and seal integrity checks.
  • Mixing Elbow Inspection: Proactive replacement of exhaust mixing elbows to prevent water back-flow and engine damage.
  • Fuel System Calibration: Precision injector testing and fuel pump timing to maintain Yanmar’s famous fuel efficiency.
  • Turbocharger & Aftercooler Service: Cleaning and pressure testing to ensure maximum boost and engine longevity.

Protect Your Warranty with Genuine Yanmar Parts

Yanmar engines are built to tight tolerances. Using “will-fit” generic filters or parts can lead to premature wear or cooling failures. We use only Genuine Yanmar parts and fluids, ensuring your engine meets its original emissions and performance specifications.

NJ Dockside & Marina Service

Sailboats and large cruisers often face logistical challenges for engine repair. Our mobile service technicians are equipped to perform engine surveys, oil changes, and cooling system overhauls at your slip. We serve the entire New Jersey coast, ensuring your vessel is ready for the season.

FAQ SECTION

 

Why is the Yanmar 50-hour service so important?

This initial service allows us to check for any settling that occurred during the first hours of use, re-torque critical bolts, and change "break-in" oil. It is a requirement for most Yanmar warranty registrations.

My Yanmar is losing RPM; what could be the cause?

For Yanmar engines, this is often linked to a clogged fuel filter or a carbon-restricted mixing elbow. We can perform a back-pressure test to identify the exact restriction.

Do you service Yanmar Saildrives?

Yes. We provide full service for Yanmar Saildrives, including gear oil changes, anode replacement, and the critical rubber diaphragm inspections.

Can you perform diagnostics on the newer electronic Yanmar engines?

Yes. We use specialized diagnostic tools to interface with the ECU on modern JH and 4LV series engines to pull fault codes and performance data.

Trust Your Yanmar to the Experts Ensure your vessel is powered by the best. Call Forked River Diesel at 609-242-8448 or schedule your Yanmar maintenance online today to guarantee a worry-free season on the water.