Atlantic Boat Repair provides professional outboard motor service & tune-ups services to Kingston residents and businesses. Fast response, fair pricing, guaranteed satisfaction.
Outboard motor service is the scheduled maintenance that keeps a marine engine running cleanly, safely, and at full power. A typical service touches spark plugs, fuel filters, the water-pump impeller, lower-unit gear oil, anodes, and a full engine inspection. For most recreational boats, the manufacturer calls for service every 100 hours or once per year, whichever comes first. Outboards work harder than most owners realize, and skipping a single season often shortens engine life by years.
In Plymouth and the broader Cape Cod Bay area, the combination of salt water, ethanol-blended pump fuel, and a long off-season is hard on outboards. Water-pump impellers stiffen and crack while a boat sits, ethanol breaks down in the tank and gums up the carburetor or fuel injectors, and small electrical issues that started in the fall turn into no-starts in the spring. Service before the first launch of the season catches all of that.
Atlantic Boat Repair services both two-stroke and four-stroke outboards from the major manufacturers (Mercury, Yamaha, Honda, Suzuki, Evinrude, and Tohatsu). A standard tune-up covers spark plugs, fuel and water-separator filters, gear oil drain and refill (checking for water intrusion), water pump and impeller inspection or replacement, anode replacement, lower-unit pressure test, and an on-the-hose run-up to verify cooling flow and idle. Larger services add carburetor cleaning or fuel-injector service, thermostat replacement, and a full diagnostic scan on modern engines.
The most common myth is that outboards "don't need much" because they sit out of the water. The opposite is true. Heat, vibration, salt, and ethanol fuel all attack outboard internals harder than a typical car engine, and modern four-strokes have tighter tolerances that depend on clean oil and unrestricted cooling. Skipping the annual service is the single biggest reason engines fail mid-season.
Call us if you notice rough idle, hesitation under throttle, an alarm horn, white smoke, an overheat warning, a weak telltale stream, or any change in starting behavior. We also recommend a full service any time you buy a used boat, before the start of every season, and after any extended layup.
Ron and Ryan were fantastic to work with. Customer service and attention to detail made repowering my boat a great experience. Would recommend Atlantic to anyone looking for a repower or outboard work.
Christopher Yuknis
Verified Google Review
You can’t find a better boat repair shop on the east coast! They repowered my boat 2 years ago! And have stood by me through all oil changes upper and lower unit. Any small problems have been addressed immediately! And the friendly service of Ron and his head mechanic Ryan has been phenomenal! Don’t hesitate to bring your boat to Atlantic! For the best customer service you will ever experience! Ron has 50 years of knowledge and experience and can deliver satisfaction! As well as Ryan! A hell of a mechanic!
Brian Donahue
Verified Google Review
Can’t say enough good things about Atlantic Boat Repair. Ron, Ryan, and the whole team were awesome to work with. They got my 2003 Montauk in quickly, installed my new Garmin, repaired my lower unit, kept me updated throughout the entire process, and had me back on the water just a couple of days later, right before the holiday weekend. They even sent one of their guys to pick up a part the same day so there wouldn’t be any delays getting us back out. The communication, turnaround time, and quality of the work were all exceptional. Finding a shop you can truly trust is hard, and I genuinely won’t take my boat anywhere else. They’ve earned a customer for life! Thanks again, guys!
Nicole D'Argento
Verified Google Review
I’ve had a boat for many years and had gone to various shops for winterizing and repairs. Some took forever to complete the work and others ignored (more than once) my request to look at an electronics issue I was having. Then I found Atlantic! Ryan has been absolutely great for the past several years I’ve been going there. I don’t think there is anything they don’t do! I’ve had new electronics, winterizing, engine maintenance, even trailer repair. They do detailing too. Always a fair price and they are extremely responsive. I’ve referred 3 other friends there who have all been satisfied customers.
Jeffrey Norton
Verified Google Review
Their customer service and knowledge is second to none. Whether you’re buying, selling, maintaining or repairing a boat or engine - I wouldn’t dream of using anyone else. Been with them for over 10 years.
Roger T
Verified Google Review
My new “go to" for my little outboard motor; friendly, smart, honest, competent, quick, reasonable, local for me -what more do you want?
Chris Rathbun
Verified Google Review
Jan 14, 2026 · 8 min read
A motor tune-up is preventative maintenance that inspects, adjusts, and replaces wear components before they fail on the water. For outboards in New England saltwater, the marine environment makes regular service more important and more specific than a typical automotive tune-up.
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Answered by our licensed technicians serving Kingston.
A standard annual service for a single outboard usually runs from $300 to $700 depending on horsepower, brand, and whether the impeller needs replacement. Twin engines, larger four-strokes, and EFI diagnostics fall at the higher end. We provide a written estimate before we begin work.
Once per year or every 100 hours of run time, whichever comes first. Boats that see heavy use through the summer should also get a mid-season check on fuel filters and the water-separator.
The water-pump impeller is a rubber vane assembly in the lower unit that pulls cooling water up through the engine. If it cracks or wears out, the engine overheats within minutes. We recommend replacement every two seasons, sooner if the boat sat unused.
Some of it. Plugs and basic filter changes are within reach of a mechanical owner. Lower-unit gear oil, impeller replacement, and EFI diagnostics need marine-specific tools and torque specs that most home garages lack. A missed seal or a wrong torque value is an expensive lesson.
Yes. We work on both two-stroke and four-stroke engines from Mercury, Yamaha, Honda, Suzuki, Evinrude, and Tohatsu. Older two-strokes are still common in this area and we keep parts and knowledge for them.
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