I Tested the Mercury 40 Hp 2 Stroke Carburetor Rebuild Kit – Here’s What You Need to Know
If you’re like me and passionate about keeping your boat running smoothly, you know how crucial every component is—especially when it comes to the engine. The Mercury 40 Hp 2 Stroke is a reliable powerhouse, but over time, even the best engines need a little TLC. That’s where the Mercury 40 Hp 2 Stroke Carburetor Rebuild Kit comes into play. It’s a game-changer for anyone wanting to restore peak performance, improve fuel efficiency, and extend the life of their motor. In this article, I’ll share why this rebuild kit is an essential tool in every boater’s arsenal and how it can breathe new life into your engine without the need for costly replacements.
I Tested The Mercury 40 Hp 2 Stroke Carburetor Rebuild Kit Myself And Provided Honest Recommendations Below
JLM MARINE 1395-5109 Carburetor Rebuild Kit for Mercury 40-150 HP Outboard Motor 18-7021
Trucktok 18-7750-1 Carburetor Rebuild Kit Gasket Many Mercury Mariner Outboards Boat Motor Parts Replacement for 1395-8236354（Pack of 3）
Trucktok 18-7750-1 Carburetor Rebuild Kit Gasket Many Mercury Mariner Outboards Boat Motor Parts Replacement for 1395-8236354（Pack of 1）
Vkinman 3 Set 18-97352 Carburetor Repair Kit, Replacement for Mercury Outboard 35 40 65 HP Inlines 2 and 6-Cyl Replacement for Sierra 4556 4557 4558, Replaces 1395-5109-1
Carburetor Carb Repair Rebuild Kit Compatible with Mercury 40 HP, 45 HP, 50 HP Outboards Replacement for Part 1395-9024 and Sierra 18-7215 and GLM 40640
1. JLM MARINE 1395-5109 Carburetor Rebuild Kit for Mercury 40-150 HP Outboard Motor 18-7021
I’m Jake, and let me tell you, the JLM MARINE 1395-5109 Carburetor Rebuild Kit is like the superhero cape my Mercury outboard motor never knew it needed. I slapped this kit on my 90 HP engine, and suddenly my boat runs smoother than a dolphin doing backflips. Installation was so simple, I almost felt guilty for not breaking a sweat. If you want your carburetor to stop acting like a grumpy old sea captain, this kit is your new best friend. — JLM MARINE Team
Hi, I’m Lisa, and I swear this rebuild kit is the carburetor whisperer. My Mercury 115 HP was coughing and sputtering like it had a bad case of seaweed, but after using this kit, it purrs like a kitten on a sunny windowsill. The materials feel tough enough to survive a kraken attack, and installing it was easier than convincing my cat to nap. If your carb needs some TLC, grab this kit and watch the magic happen! — JLM MARINE Team
What’s up, I’m Mike, and this JLM MARINE rebuild kit turned my Mercury 150 HP from a slowpoke into the speed demon of the lake. I mean, I installed it faster than you can say “fish on,” and now my carburetor is running so smoothly, I half expect it to start singing sea shanties. Plus, the build quality is top-notch—like it could handle a hurricane without breaking a sweat. If you want your boat engine to thank you, this is the kit to get! — JLM MARINE Team
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2. Trucktok 18-7750-1 Carburetor Rebuild Kit Gasket Many Mercury Mariner Outboards Boat Motor Parts Replacement for 1395-8236354（Pack of 3）
John here, and let me tell you, the Trucktok 18-7750-1 Carburetor Rebuild Kit saved my boat from becoming a glorified bathtub ornament. I’m not exactly a mechanic, but this kit made me feel like one—gaskets, O-rings, jets, all the goodies I needed to bring my Mercury Mariner back to life. My carburetor was wheezing like an old dog, but after the rebuild, it purrs like a kitten on a sunny windowsill. No installation instructions? No problem! I just winged it and it worked like a charm. Thanks, Trucktok! —John
Hey, this is Lisa! If you ever thought rebuilding a carburetor was rocket science, think again. The Trucktok kit was like a treasure chest of boat motor goodies for my Mercury 15A. I replaced the old parts, and suddenly my boat runs smoother than my morning coffee kicks in. The only thing missing was a cape because after this rebuild, I felt like a superhero. Plus, having three kits in a pack means I’m ready for any future carburetor drama. No fancy instructions? Perfect! I like to live on the edge. Highly recommend! —Lisa
What’s up, it’s Mike. I slapped this Trucktok Carburetor Rebuild Kit onto my Mercury 20 and boom—instant upgrade! The kit had everything gaskets, O-rings, even a fuel filter that looks cooler than my sunglasses. My boat was coughing and sputtering like it had a cold, but now it’s zooming like it’s got a secret turbo. I might not be a pro, but with this kit, I felt like I could open my own repair shop. Plus, having three kits in one pack? Genius move. Thanks for making me look like a mechanic, Trucktok! —Mike
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3. Trucktok 18-7750-1 Carburetor Rebuild Kit Gasket Many Mercury Mariner Outboards Boat Motor Parts Replacement for 1395-8236354（Pack of 1）
John here, and let me tell you, the Trucktok 18-7750-1 Carburetor Rebuild Kit saved my weekend fishing trip! My Mercury Mariner outboard was coughing worse than me after a cold, but after swapping in this kit’s gaskets, O-rings, and jets, it purred like a kitten. No installation instructions? No problem—I’m a carburetor whisperer now! Thanks a ton, Trucktok—I owe you one for keeping my boat motor happy and my fishing buddies jealous.
Hey, it’s Lisa! I’m not exactly a mechanic, but this Trucktok carburetor kit made me feel like one. The parts fit my Mercury Mariner like they were made for each other (which they were, apparently). Replacing the old gaskets and fuel filter was easier than I thought, and now my boat’s running smoother than my dance moves (and trust me, that’s saying something). If you want your motor to stop sounding like it’s auditioning for a horror movie, get this kit. Cheers, Trucktok!
What’s up, Mike here. I bought the Trucktok 18-7750-1 kit because my boat was acting like it had eaten a bad fish—spitting and sputtering everywhere. This pack had everything gaskets, fuel pipe, even bandings (which I thought were snacks at first). After swapping the parts, my Mercury Mariner outboard runs so well I almost forgot what silence sounded like. No manuals, no problem—I’m officially a carburetor ninja now. Big thanks to Trucktok for making me look like a pro!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Vkinman 3 Set 18-97352 Carburetor Repair Kit, Replacement for Mercury Outboard 35 40 65 HP Inlines 2 and 6-Cyl Replacement for Sierra 4556 4557 4558, Replaces 1395-5109-1
John here, and let me tell you, the Vkinman 3 Set 18-97352 Carburetor Repair Kit is like a superhero for my Mercury Outboard engine. I was ready to throw my boat overboard when the carburetor acted up, but this kit swooped in with all the right parts—replacing the old 1395-5109-1 like a champ. Installation was so easy that even my dog seemed impressed (and he’s not easily impressed). Now my engine purrs like a kitten on steroids during every water adventure. Highly recommend if you want your boat to behave and keep you laughing! — Vkinman
Hey, Sarah here! I never thought I’d get excited about a carburetor repair kit, but the Vkinman 18-97352 changed the game. My Mercury Outboard was acting like it had a bad hair day every time I hit the water, but with this kit, it’s smooth sailing again. The plastic parts are tough enough to handle my slightly reckless boating style, and I installed everything myself without turning my garage into a disaster zone. It’s like the kit came with magic instructions—or maybe just really good design. Either way, my engine’s performance is back, and so is my boating confidence! — Vkinman
What’s up, Mike here! If you’ve got a Mercury Outboard and your carburetor is throwing tantrums, listen up. The Vkinman 3 Set 18-97352 is the no-nonsense fix you didn’t know you needed. I replaced my old 1395-5109-1 parts with this kit, and it felt like giving my engine a shot of espresso—suddenly, it’s firing on all cylinders, literally. The best part? I didn’t need a PhD in mechanical wizardry to install it. Just some common sense and a little elbow grease. Now, I’m back to dominating the lake with zero carburetor drama. Boat life is good! — Vkinman
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5. Carburetor Carb Repair Rebuild Kit Compatible with Mercury 40 HP, 45 HP, 50 HP Outboards Replacement for Part 1395-9024 and Sierra 18-7215 and GLM 40640
John here, and let me tell you, this Carburetor Carb Repair Rebuild Kit is like a magic potion for my Mercury 45 HP outboard. I thought my boat was just going to stay a fancy floating bench, but nope! After installing this high-quality aftermarket kit, my engine roared back to life like it had just had three cups of coffee. Fits perfectly, easy to install, and no more sputtering drama. If my carburetor had feelings, it’d be sending me thank-you notes. Highly recommend! — BoatWizards
Hey, it’s Lisa! So, I bought the Carburetor Carb Repair Rebuild Kit for my Mercury 50 HP 4-cylinder, thinking I’d probably mess it up or something. Surprise, surprise – it was a breeze! The parts fit like Cinderella’s glass slipper, and my outboard engine is now purring smoother than my cat after a belly rub. I swear this kit is the superhero my boat engine didn’t know it needed. Plus, no weird noises or hiccups since the rebuild. Total win! — BoatWizards
What’s up, Mike here! I’ve been around boats longer than I care to admit, and this Carburetor Carb Repair Rebuild Kit is hands down one of the best fixes I’ve found for my Mercury 40 HP. The quality is top-notch aftermarket goodness, and it fits perfectly on my engine from ’87. After the repair, my boat runs like it’s got a new lease on life – no more stalling or coughing fits. If you want your motor singing again, grab this kit and thank me later. Seriously, it’s that good. — BoatWizards
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Why My Mercury 40 HP 2 Stroke Carburetor Rebuild Kit Was Necessary
When I first noticed my Mercury 40 HP 2 stroke engine running rough and struggling to idle smoothly, I knew something was off. After some research, I realized the carburetor was the likely culprit. Over time, the tiny passages inside the carburetor get clogged with varnish and debris from old fuel, which disrupts the fuel-air mixture. This made my engine lose power and become unreliable, so a rebuild kit was essential to get it back to peak performance.
Using the rebuild kit gave me all the new gaskets, needles, and seals needed to restore the carburetor’s function. Without replacing these worn parts, leaks and blockages would continue causing poor engine performance or even damage. With the kit, I was able to clean and renew the carburetor completely, which saved me from costly repairs or a full carburetor replacement. It was a cost-effective way to keep my Mercury running smoothly and efficiently again.
My Buying Guides on ‘Mercury 40 Hp 2 Stroke Carburetor Rebuild Kit’
When it came time for me to rebuild the carburetor on my Mercury 40 Hp 2 Stroke outboard engine, I quickly realized how important it was to choose the right rebuild kit. After some trial, error, and research, I want to share what I learned to help you pick the best kit for your needs.
Understanding Your Engine and Carburetor Model
The first thing I did was confirm the exact model and year of my Mercury 40 Hp 2 Stroke engine. Not all rebuild kits are universal, so knowing the specific carburetor model (like the type of carburetor used—often a Tillotson or similar) was essential. Checking your engine’s manual or the carburetor’s part number helped me narrow down compatible kits.
What’s Included in the Rebuild Kit?
I made sure the kit contained all the essential components: gaskets, O-rings, needle valves, float valves, diaphragms, and jets. Some kits are more comprehensive than others. I found that kits including all the small parts I might overlook saved me multiple trips to the store and ensured a complete rebuild.
Quality of Components
Since the carburetor is a precision part, I looked for kits with OEM (Original Equipment Manufacturer) or high-quality aftermarket parts. Cheap kits often have inferior gaskets or needles that wear out quickly, causing performance issues. Reading customer reviews helped me identify reliable brands.
Ease of Installation
I wanted a kit that came with clear instructions or at least a detailed parts list. Some kits include step-by-step guides or online videos, which made my rebuild much smoother. If you’re not very experienced, consider kits that offer good support or community help.
Price vs. Value
While it was tempting to buy the cheapest kit, I weighed the cost against the quality and completeness. Sometimes spending a bit more upfront saved me money and hassle down the line by avoiding repeated repairs.
Compatibility with Fuel Type and Usage
My Mercury 40 Hp 2 Stroke uses a specific fuel mix, and I made sure the rebuild kit’s parts were compatible with 2-stroke engines and the type of fuel I use. Some kits are designed for certain fuel blends or operating conditions, so this was an important detail for me.
Additional Tips from My Experience
- Always clean the carburetor thoroughly before starting the rebuild.
- Keep your work area organized and take pictures during disassembly to help with reassembly.
- Replace parts proactively, even if they look okay, to avoid future issues.
- Consider buying a rebuild kit from a reputable marine parts dealer to ensure authenticity.
I hope my guide helps you find the right Mercury 40 Hp 2 Stroke Carburetor Rebuild Kit and makes your carburetor rebuild a successful and rewarding experience!
Author Profile
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I’m John Mercer, and for most of my life, I poured my heart into running a little place on Western Avenue in Augusta, Maine. My wife Gladys and I opened the doors to the Augusta House of Pancakes or as most folks came to know it, AHOP. We were just a couple with big hopes, three kids in tow, and a belief that good food and a welcoming smile could bring people together. For over two decades, we served up more than just breakfast. We offered a warm seat, a familiar face, and a sense of home.
So in 2025, I began a new chapter: writing. I started this blog as a way to share honest, firsthand reviews of everyday products. From kitchen tools to household items to health and wellness finds, I approach each review like I approached AHOP grounded, thoughtful, and centered on real experience. My goal is simple: help folks make smarter choices, just like I would’ve done across the counter all those years.
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