BoatMend

Repair & maintenance guides

Plain-English, step by step, written for owners. Pick your engine to see the guides that apply to it.

342 of 509 guides · page 14 of 15

Rules & seamanshipEasyDraft

Taking Your Boat to Another State: Registration Reciprocity, Visitor Time Limits and Nonresident Permits

Your home-state registration lets you boat in other states, but only for a while, and some states add their own visitor permits, use-tax permits and invasive species stickers. Learn how federal reciprocity works, real examples from Texas, Florida, Washington and Oregon, and a checklist for a vacation trip or a season away. General information, not legal advice.

45 min All engines
Rules & seamanshipModerateDraft

Taking Your Boat to the Bahamas: Cruising Permit, Fishing Permit, Passports, Radio License and Insurance

A paperwork checklist for running a US recreational boat to the Bahamas: the Bahamas cruising and fishing permits and their current fees, passports, the FCC ship station license, insurance navigation limits, pets, and the US 'skin on the fillet' rule for bringing Bahamian fish home. General information, not legal advice; fees and rules change often.

2 h All engines
Hull & systemsModerate

Teak Deck and Trim Care: Clean, Oil, Seal or Leave It Natural

Keep teak decks, rails and trim looking good without wearing them away. Choose between a natural gray look, oil, sealer or varnish, and learn how to clean teak gently so you don't destroy it with harsh cleaners or a pressure washer.

4 h All engines Shop: $300-2000
Routine serviceEasy

Testing Engine Coolant: Test Strips, Refractometer or Lab Analysis

Coolant can look perfect and still be worn out. Learn how to test the coolant in a closed-cooled inboard, sterndrive, diesel or generator with test strips, a refractometer or a mail-in lab kit, what each result tells you, and when the answer is a coolant change or a call to a mechanic.

20 min Gas inboard, Sterndrive (I/O), Marine diesel Shop: $40-150
ElectricalModerateDraft

Testing Your VHF Antenna and Coax: Radio Checks, SWR, Connectors and Mounts

Most weak or scratchy VHF radios have nothing wrong with the radio. Learn how to test the whole antenna system, from a proper radio check and a DSC test call to a multimeter and SWR meter, how to find corroded connectors and wet coax, and when to replace the cable, antenna or mount.

1 h 30 min All engines Shop: $100-600
SafetyEasy

The Pre-Departure Safety Briefing: What to Tell Every Passenger (with a Printable Checklist)

A five-minute talk before you leave the dock turns guests into a crew that can help in an emergency. Cover life jackets, the engine cut-off switch, the fire extinguisher, how to call for help on the VHF, what to do if someone falls overboard, staying seated, seasickness and carbon monoxide near the stern, then use the printable checklist every trip.

10 min All engines
Buying & ownershipEasy

The Real Cost of Owning a Boat: Building a Yearly Budget and Cutting Costs with DIY

Add up what a boat really costs each year (storage, insurance, fuel, maintenance, winterizing, registration, depreciation and the surprise repair), check it against the common rules of thumb, and find the places where do-it-yourself work and smarter choices save real money. Practical planning help, not financial advice.

1 h 30 min All engines
SafetyEasy

Tow Ropes, Tubes and Watersports Gear: Inspect, Rig and Retire

Check ski, wakeboard and tube ropes, handles, towable tubes and your boat's tow points before every outing, rig them the right way, and know when to throw gear out. Includes the safety basics (spotter, flag, life jackets, prop and carbon monoxide) that vary from state to state.

20 min All engines
TrailerEasy

Tow Vehicle Maintenance for Boat Owners (Transmission, Differential, Brakes, Hitch)

Keep the truck or SUV that pulls your boat ready for the job: follow the severe-service schedule, protect the transmission from heat, check the rear differential for ramp water, keep brakes, tires, hitch and wiring in shape, and rinse salt off the underside after every saltwater launch.

1 h All engines Shop: $150-600
TrailerModerate

Tow Vehicle Rear Differential Care: Ramp Water, Milky Gear Oil and Limited-Slip Additive

Backing the truck's rear axle into the water at the launch ramp can pull water into the differential through its vent. Learn how water gets in, how to keep the axle dry, how to drain and read the gear oil, why limited-slip axles need friction modifier, when to change the fluid, and when the differential needs a shop.

1 h 30 min All engines Shop: $100-300
SafetyEasy

Towable Tube Care and Repair: Find Leaks, Patch the Bladder and Know When to Retire It

Inspect a towable tube's bladder, cover, valves, handles and tow point, find and patch leaks the right way, and dry and store it so it lasts. Also covers rider ratings and the damage that means the tube should be retired, not repaired.

1 h All engines
TrailerModerate

Towing a Wide or Heavy Boat: Width Limits, Oversize Permits and When to Hire a Hauler

In most states a boat or trailer wider than 8 feet 6 inches (102 inches) is a wide load that needs a permit, and some loads also need flags, signs, lights, set travel hours or escorts. Learn how to measure your rig, find each state's rules, get the permits and decide when a professional transporter makes more sense.

1 h All engines
TrailerEasy

Trailer Tongue Jack and Coupler Care: Grease, Adjust and Know When to Replace

The tongue jack and coupler take a beating from weight, road grit and launch-ramp dunking. A few minutes of cleaning and grease a couple of times a season keeps the jack cranking smoothly and the coupler locking tight on the ball, and tells you when either part is worn out.

45 min All engines Shop: $75-300
Hull & systemsModerateDraft

Type I and II Treatment Systems (Electroscan, Purasan, Lectra/San): Care, Salt, Tablets and Winter

A flow-through treatment system lets a boat discharge treated waste where the law allows, but only if it works and only outside no-discharge zones. Learn how these units work, why salt and tablets matter, how to keep electrodes and dispensers clean, how to lock the system in a no-discharge zone, and how to lay it up dry for winter.

1 h All engines Shop: $200-900
ElectricalEasy

Underwater LED Lights: Care, Leaks, Corrosion, Wiring and the Rules

Keep underwater LED lights bright and your hull dry. Learn the difference between through-hull and surface-mount lights, how to clean growth off the lens without damaging it, what to check for leaks, wiring, fusing and bonding, when the boat has to be hauled, and why the lights should not be on while you're underway.

1 h All engines Shop: $150-600
TrailerModerate

Upgrading Boat Trailer Hubs: Grease-Through Spindles, Oil Bath, Protectors and Pre-Packed Kits

Choose the right hub setup for how you use your trailer, swap in a pre-packed hub kit, adjust it correctly and know when the axle itself is the real problem. Better hubs mean fewer roadside bearing failures and less time with greasy hands.

2 h 30 min All engines Shop: $150-450
Buying & ownershipEasy

USCG Documentation Renewal: When, How, What It Costs and How to Avoid Look-Alike Renewal Mailers

Keep your boat's Coast Guard Certificate of Documentation current: how long a recreational certificate lasts (1 to 5 years), the federal fee schedule, renewing directly with the NVDC online, what happens if it lapses, why many states still want registration and a decal, and how to spot the third-party letters that charge several times the real fee.

30 min All engines
SafetyEasy

USCG Required Safety Equipment Check by Boat Length

Walk through your boat and confirm you carry every piece of safety gear the US Coast Guard requires for your boat's length and type, and that none of it is expired or worn out. Missing or expired gear is one of the most common tickets on the water, and it is the gear you need when things go wrong.

45 min All engines
Buying & ownershipEasy

Used Boat Paperwork: Titles, Liens, HIN Checks, Bill of Sale and Registration

A practical checklist for the paperwork side of buying a used boat: state title or Coast Guard documentation, checking for liens and theft, verifying the hull ID number, writing a proper bill of sale, the trailer's own title, registering in your name, and transferring warranties and checking recalls. Rules vary by state, so confirm each step with your state agency.

2 h All engines
Buying & ownershipModerate

Used Boat Purchase Agreement and Closing: Deposit, Contingencies, Bill of Sale and Who Pays What

A plain-English walk-through of buying a used boat on paper: getting ready before you offer, what the purchase and sale agreement should say, how the deposit is held and when it comes back, survey, sea trial, financing and insurance contingencies, paying off the seller's loan, the bill of sale, closing and transferring the paperwork, and the costs each side usually covers. Practical help, not legal advice; rules vary by state.

4 h All engines
Hull & systemsAdvanced

Vinyl Hull Wraps: Pros, Cons, Prep, Care and Removal

Find out whether a vinyl wrap makes sense instead of paint for your hull, how to prep for it, when to hire an installer, how to wash it without ruining it, and why wraps stop at the waterline.

8 h All engines Shop: $2000-8000
SafetyEasy

Visual Distress Signals: Flare Expiry, Storage, Practice and Safe Disposal

Make sure your flares, smoke signals, distress flag or electronic distress light meet the Coast Guard rules for day and night, are not past their 42-month date, and are stored where you can grab them. Then get rid of expired flares the safe and legal way instead of letting them pile up in a locker.

30 min All engines
Hull & systemsModerate

Watermaker Care: Pre-Filters, Flushing, Pickling and Production Checks

Keep a reverse osmosis watermaker making good water for years by changing pre-filters on time, flushing or pickling the membrane whenever it sits, staying out of dirty harbor water and checking every batch with a TDS meter before it goes in the tank.

1 h All engines Shop: $200-600
Hull & systemsModerateDraft

Wet Exhaust and Waterlift Mufflers: Stop Water Flooding the Engine and Catch Leaks Early

On most sailboats and many power boats, cooling water is sprayed into the exhaust and pushed out through a waterlift muffler. Learn how the system works, why long cranking can flood the engine with seawater (and when to close the seacock), and how to inspect the muffler, hoses, clamps and siphon break, including the scorch marks that tell you the exhaust once ran dry.

1 h Marine diesel, Gas inboard Shop: $150-1500

Safety: BoatMend is for information only and does not replace a certified marine technician. You are responsible for your safety and your boat. Read the full disclaimer.