⚓ Marine Division

Clean Injectors. Better Performance. Longer Engine Life.

Paperless Shipping

Go paperless with UPS. Fill out our online form, get a QR code by email, and drop your package at any UPS location. No printer needed.

Get QR Code →

Print a Shipping Form

Download our PDF form, fill it out by hand, and ship with any carrier you prefer.

Top Feed $25 Side Feed $30 GDI $30 Optimax Air $40 Test Only $15 per injector • 2 minimum Full pricing & policy →

●Marine Port Fuel Injectors & GDI (Gasoline) ○Diesel and E-TEC not currently serviced

Mercury • Yamaha • Honda • Suzuki • Tohatsu

How We Dial Your Injectors In

Every injector is tested, cleaned, and retested on professional ASNU equipment. Nothing leaves our shop until it's Dialed In.

Spray Pattern Testing

Every injector is individually spray tested and visually inspected for atomization quality, leak down, and electrical resistance. Poor spray patterns cause rough idle and misfires — problems that don't show up in flow data alone.

Flow Rate Analysis

Precision flow testing measures each injector's output in cc/min against the full set. We calculate variance across all cylinders. The industry generally allows for 5% in marine applications, but we shoot for 4%.

Diagnostic report showing before and after flow data with variance analysis

Rebuild & Report

New o-rings, seals, and filter baskets go on every injector we clean - itemized at cost on your invoice. Your diagnostic report documents the full service: before and after flow rates, spray pattern grades, variance analysis, parts replaced, and our recommendations. Dialed in. Done.

Professional Equipment. Transparent Results.

We run an ASNU M-5000 — it's the same test bench the big injector remanufacturers use. Every injector gets flow tested before we touch it so we know exactly where it stands, then again after cleaning so you can see what changed.

The diagnostic report that ships with your injectors has the actual numbers: flow rates in cc/min, spray pattern grades, and how tight your set matches across all cylinders.

Every service includes visual inspection, ohm and resistance testing, leak down testing, spray pattern analysis, precision flow testing, ultrasonic cleaning with back-flush cycles, and new o-rings, seals, and filter baskets if needed.

Based in the Southeast, serving boat owners and marinas nationwide by mail.

ASNU M-5000 diagnostic workstation used for marine fuel injector testing

How It Works

Three steps. No hassle. Professional results.

Ship

Choose paperless or print. Paperless gets you a UPS QR code by email — take it to any UPS location and they handle the rest. Prefer to do it yourself? Download our PDF form and ship with any carrier.

Service

We test, clean, and retest every injector on professional ASNU equipment. If your set requires new parts or a reman kit, we do that also. You get a full diagnostic report with before and after specifications.

Receive

Your injectors ship back via UPS Ground with $1,000 declared value insurance. One invoice covers everything: service, parts, inbound shipping, and return shipping. No surprises.

Get Dialed In.

Professional injector service that performs — You ship 'em and we take care of the rest. Done.