14 Best Outboard Carb Cleaners for Peak Performance

Discover the best outboard carb cleaner to boost your engine's performance effortlessly. Unlock power and efficiency with our top picks.
14 Best Outboard Carb Cleaners for Peak Performance

Top Quick Picks For You

Most Cost-Effective

Berryman B-12 Chemtool

Berryman B-12 Chemtool

Berryman Products 0117 B-12 Chemtool offers a high-quality cleaning solution at an affordable price, making it a top choice for those seeking a budget-friendly carb cleaner.

Best for Engine Performance

Gumout Carb Cleaner

Gumout Carb Cleaner

Gumout 800002231 Carb / Choke and Parts Cleaner is renowned for its powerful jet spray, effectively cleaning carburetors while enhancing overall engine performance and fuel efficiency.

Best for Quick Cleaning

STA-BIL

STA-BIL

STA-BIL Marine Tune-Up Fuel Treatment quickly cleans carburetors and is designed to resolve rough-running engines, making it perfect for those who need fast results.

Best for Removing Deposits

WD-40 Specialist

WD-40 Specialist

WD-40 Specialist Carb/Throttle Body & Parts Cleaner is designed with a powerful dual-action cleaning system that efficiently breaks up tough, baked-on carbon deposits for effective removal.

Best Outboard Carb Cleaner

When it comes to maintaining the heart of your boat’s performance, outboard carburetors are where the magic happens. A well-cleaned carb not only ensures smooth sailing but also enhances fuel efficiency and longevity. Dive into our guide on the best outboard carb cleaner to discover the top-notch solutions that will keep your vessel purring like a well-tuned engine.

Most Cost-Effective: Berryman B-12 Chemtool

Berryman Products 0117 B-12 Chemtool Carburetor, Choke and Throttle Body Cleaner [Not VOC Compliant in Some States], 16-Ounce (117)
Highlights
High-energy solvent technology
Effective at dissolving residues
Safe for catalytic converters

When it comes to tackling stubborn gunk in your outboard carburetor, Berryman Products 0117 B-12 Chemtool stands out as our top pick for Most Cost-Effective .

This powerful cleaner features 100% high-energy solvent technology that quickly dissolves gum, varnish, and other residues, while also being safe for your catalytic converter and O2 sensor .

With a universal fit and an extension tube for easy application, it’s user-friendly and efficient .

Just a heads-up, the strong solvent smell might hit you hard, so take precautions .

Overall, we think this is an unbeatable bargain for keeping your engine in top shape!

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Price history for Berryman B-12 Chemtool on Amazon

Best for Engine Performance: Gumout Carb Cleaner

Gumout 800002231 Carb / Choke And Parts Cleaner, 14 oz. - Cleans Carburetor, Brakes And All Unpainted Metal Parts of Gum, Varnish, Oil And Other Contaminants, Spray
Highlights
Effective cleaning power
Fast-drying formula
Versatile for multiple uses

Gumout 800002231 Carb / Choke and Parts Cleaner truly deserves its title as the best for engine performance !

With its powerful jet spray, it quickly obliterates gum, varnish, and grime, allowing your carburetor to shine and work optimally .

We love that this cleaner isn’t just a one-trick pony; it tackles everything from brake pads to motorcycles, making it a versatile addition to any toolkit .

Plus, the fast-drying formula leaves no residue, so you can get back to enjoying your ride ASAP .

Just a heads-up: the strong chemical smell means you’ll want to use it in a well-ventilated space .

Happy cleaning!

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Price history for Gumout Carb Cleaner on Amazon

Best for Quick Cleaning: STA-BIL

STA-BIL Marine Tune-Up Fuel Treatment – Cleans Carburetors and Injectors – Fixes Rough Running Engines – Eliminates Water – Treats up to 20 Gallons – 8 oz. (22313), Blue, 8oz
Highlights
Easily cleans carbs
Cleans injectors efficiently
Treats 20 gallons of fuel

We’re thrilled to introduce the STA-BIL Marine Tune-Up Fuel Treatment as our top pick for “Best for Quick Cleaning.” If you're in a rush to revive a rough-running engine, this product does the trick—fast !

It efficiently cleans carburetors and injectors, leaving your small boat or personal watercraft running smoothly .

With the ability to treat up to 20 gallons of fuel, it effectively dissolves gum and varnish build-up, making it an essential for any water lover .

While results can vary and you'll need to mix in some fresh gas, its quick-action formula is undeniably impressive .

Get ready to enjoy a smooth ride!

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Price history for STA-BIL on Amazon

Best for Removing Deposits: WD-40 Specialist

WD-40 Specialist Carb/Throttle Body & Parts Cleaner, 13.5 OZ
Highlights
Effective dual-action cleaning
Improves engine performance
Works on various vehicles

When it comes to the best outboard carb cleaner, we wholeheartedly recommend the WD-40 Specialist Carb/Throttle Body & Parts Cleaner .

This powerful spray truly shines with its dual-action cleaning system, effortlessly breaking down tough, baked-on carbon deposits .

We love that it's an all-in-one solution for carburetors, throttle bodies, and unpainted metal parts, making it versatile for both old and new vehicles .

With this cleaner, we found that engines start up fast and maintain a smooth idle with less stalling .

Just keep in mind that it comes at a slightly higher price, but the performance boost is well worth the investment!

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Price history for WD-40 Specialist on Amazon

Gumout Carb Cleaner

Gumout 800002231-6PK Carb and Choke Cleaner, 14 oz. (Pack of 6)
Highlights
Quick deposit removal
Enhances engine performance
Reduces emissions

When it comes to keeping your outboard engine purring like a kitten, we highly recommend the Gumout Carb Cleaner .

This potent formula quickly zaps away deposits from both the inside and outside of the carburetor, giving your engine a thrilling performance boost .

We've seen it work wonders on the gum, varnish, and dirt that can clog up those vital components .

Plus, it helps tackle those annoying issues like hard starts and rough idling .

Just keep in mind it’s best for unpainted metal parts, and a little soaking time is required .

Overall, it’s a stellar choice for improving fuel economy and reducing emissions!

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Price history for Gumout Carb Cleaner on Amazon

STA-BIL Fast Fix

STA-BIL Fast Fix - Small Engine Treatment, Cleans Carburetors and Injectors, Fixes Rough Running Engines, Eliminates Water, Treats Up to 20 Gallons, 8oz (22304) , Green
Highlights
Fixes rough running engines
Eliminates water in fuel
Versatile for all small engines

We’ve put STA-BIL Fast Fix to the test, and we’re impressed !

This powerful fuel additive doesn’t just tackle rough starts—it dives deep to eliminate gum and varnish, ensuring your engine runs smoothly again .

Plus, it’s versatile, cleaning carburetors and injectors across all small engines, from lawn mowers to generators .

One of the standout features is its ability to eliminate water from your fuel system—all without requiring engine disassembly, saving you time and hassle .

While some may find it a tad pricey or need multiple treatments, the results often speak for themselves .

Overall, STA-BIL Fast Fix is a reliable ally for any engine enthusiast!

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Price history for STA-BIL Fast Fix on Amazon

Quicksilver Power Tune Outboard Carb Cleaner

Quicksilver 858080Q03 Power Tune Internal Engine Cleaner for 2-Stroke, 4-Stroke and Fuel-Injected Gas Engines - 12 Oz.
Highlights
Removes harmful deposits
Improves engine performance
Works on all engines

When it comes to tackling the gunk and grime in your outboard engine, Quicksilver's outboard carb cleaner is a standout choice .

We appreciate that it effectively removes harmful deposits that accumulate from regular use, which is essential for maintaining peak performance .

Plus, with its versatility for both 2- and 4-cycle engines, it makes cleaning a breeze for any boat enthusiast .

The 12 oz. spray can releases a powerful cleaner that not only enhances fuel and air flow but also boosts overall engine performance .

Just keep in mind that for first-time cleanings, you might need a couple of applications to see the best results .

However, the impressive 4.7-star rating from over 500 reviews speaks volumes .

So grab a can, and let's get your engine running smoothly again!

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Price history for Quicksilver Power Tune on Amazon

STA-BIL

STA-BIL (22005) Carb/Choke and Parts Cleaner - Safe For Oxygen Sensors - Dissolves Gum, Varnish, Dirt, & Carbon Deposits - Cleans unpainted Metal Parts - High Grade Formula, 12.5 oz
Highlights
Effective cleaning power
Restores performance
Easy to use

We couldn’t be more impressed with the STA-BIL Carb & Choke Cleaner .

This powerful formula swiftly dissolves gum, varnish, and carbon deposits, leaving no oily residue behind .

After just a few sprays, we noticed a remarkable improvement in starting times and smooth idling, which is essential for any outboard engine .

It's versatile enough for all carbureted internal combustion engines, and we loved that it’s safe for catalytic converters and oxygen sensors .

While you may need a couple of applications for optimal results, the boost in performance and gas mileage makes it well worth it!

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Price history for STA-BIL on Amazon

Sea Foam

Sea Foam SS14 Cleaner and Lube
Highlights
Cleans carbon buildup
Improves engine performance
Helps pass emissions tests

When it comes to reviving your outboard engine, Sea Foam Car Cleaner is a powerhouse that we can’t ignore .

This cleaner effectively cures hesitation, stalls, and rough idles caused by pesky carbon buildup, which means smoother sailing for you !

Plus, it’s versatile enough to store and fog both 2-cycle and 4-cycle engines .

With its EPA registration, you can count on it to help you breeze through those emissions tests .

While it may require a partner for optimal application and could leave you with a bit of smoke, the performance boost you’ll experience makes it worth the effort .

Say goodbye to carbon woes and hello to a revitalized engine!

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Price history for Sea Foam on Amazon

YINGSL Cleaner Kit Outboard Carb Cleaner

LImeiy Carburetor Carbon Dirt Jet Remove Cleaner, 13 Cleaning Wires Set + 10 Cleaning Needles + 5 Nylon Brushes + 1 Sharp Pick Tool Kit for Motorcycle ATV Moped Welder Carb Chainsaw Spray Guns Torch
Highlights
Versatile for various tasks
Durable, rust-proof materials
Great assortment of sizes

When it comes to tackling those pesky obstructions in tight spaces, we’ve unearthed a gem: the LZBB Outboard Carb Cleaner Set .

With an array of five different width nylon brushes and ten cleaning needles of varying diameters, this versatile kit makes even the trickiest jobs feel like a breeze .

The bendable materials are a game changer—ensuring you reach into those crooked corners without ruining your hands .

While it may struggle with heavier gunk and isn’t ideal for larger carbs, its durability and effectiveness for smaller tasks are unbeatable .

If you're ready to make your cleaning routine easier, this is the tool for you!

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Price history for YINGSL Cleaner Kit on Amazon

Valchoose Cleaning Brushes

Valchoose Premium Jet Cleaning Brushes, Carb Carburetor Cleaners Made of Heavy Duty Density Nylon and Stainless Steel 13 Cleaning Wires Set + 5 Nylon Brushes + 10 Cleaning Needles
Highlights
Time-saving and convenient
Fits small carburetors
Multiple cleaning applications

When it comes to tackling stubborn gunk in your outboard carb, the Valchoose Jet Cleaning Brushes are our go-to solution .

We love how time-saving and convenient these brushes are; no more struggling with cramped spaces !

With a range of diameters from 2mm to 7mm, they effortlessly fit into even the tiniest passages, making short work of ethanol damage and crusted deposits .

While they might not suit larger carburetors, their versatility means they cater to everything from motorcycles to lawn equipment .

Plus, the customer satisfaction guarantee gives us peace of mind .

Say goodbye to messy cleanups and hello to smooth sailing!

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Price history for Valchoose Cleaning Brushes on Amazon

SQ Carburetor Cleaner

SQ Carburetor Cleaner, 12 pack, 12.5 Oz per bottle
Highlights
Non-chlorinated formula
Leaves no residue
Effective engine starter

When it comes to the best outboard carb cleaner, we can't help but rave about the SQ Carburetor and Choke Cleaner by Sicamu. Its non-chlorinated formula is a game-changer, ensuring that you won't be greeted by any sticky residue after use .

We love how it can serve as a fantastic engine starter for both lawn mowers and two-stroke engines, effortlessly bringing them back to life .

However, do keep in mind that it’s highly flammable and not available in some states .

Overall, it’s a stellar option for those who prioritize quality and performance—just use it with care!

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Price history for SQ Carburetor Cleaner on Amazon

Motfittings Carburetor Kit Outboard Carb Cleaner

Carburetor Cleaning Kit, 13 Wires + 10 Needles + 5 Brushes + 1 Pick, Premium Torch Tip Cleaner, Carbons Dirt Jet Remove, Suitable for Auto, Motorcycles, ATV, Welder, Lawn Equipment
Highlights
Comprehensive cleaning kit
High-quality materials
Convenient and portable

When it comes to tackling tough cleaning jobs in small spaces, Motfittings' Carburetor Cleaner Kit has got your back !

With 13 cleaning lines, 10 versatile needles, and 5 durable nylon brushes, this comprehensive kit makes light work of those tricky corners .

Crafted from rust-proof stainless steel and flexible nylon, you can count on it to withstand the test of time without losing its shape .

Though the needles can be a bit delicate, a little care goes a long way .

Its portable design with a handy key ring means you can take it anywhere .

Say goodbye to the grime and hello to precision cleaning!

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Price history for Motfittings Carburetor Kit on Amazon

Wroskay Carburetor Cleaner

Carburetor Cleaning Kit, Premium Gun Jet Cleaner, Stainless Steel 13 Clean Line Set, 9 Cleaning Needles, 6 Nylon Brushes, 1 Pointed Picks,1 Throttle Wrench
Highlights
Comprehensive cleaning ability
High-quality durable materials
Effective for hard-to-reach areas

When it comes to tackling the grime in your outboard's carburetor, the Wroskay Carb Cleaner Kit is our top pick .

This comprehensive one-stop solution comes packed with everything from carburetor and throttle body cleaner to specialized tools for reaching those pesky tight spots .

The high-quality stainless steel and nylon materials ensure durability and flexibility, while the spiral bristles do wonders in clearing out even the most stubborn dirt .

We appreciate its compact design that makes it a breeze to take on-the-go for quick repairs .

Just a heads up, some tools can bend if pushed too hard, but overall, this kit is a fantastic investment for any enthusiast!

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Price history for Wroskay Carburetor Cleaner on Amazon

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