How I Rebuilt My Mercury 20 HP 4-Stroke Carburetor

Mercury 20 Hp 4-Stroke Carburetor Rebuild Kit: A How-To Guide

If your Mercury 20 hp 4-stroke outboard motor is running rough, it may be time to rebuild the carburetor. A carburetor rebuild kit is a relatively inexpensive and easy way to get your motor running smoothly again. In this guide, I will walk you through the steps of rebuilding a Mercury 20 hp 4-stroke carburetor.

I’ll start by explaining the basics of carburetor operation, then I’ll go over the steps of the rebuild process in detail. I’ll also provide tips on troubleshooting common carburetor problems. By the end of this guide, you’ll be able to rebuild your Mercury 20 hp 4-stroke carburetor like a pro!

What is a Carburetor?

A carburetor is a device that mixes fuel and air in the proper proportions for combustion. In a 4-stroke engine, the carburetor is responsible for providing the fuel-air mixture to the engine cylinders during the intake stroke. The carburetor is located on the intake manifold and is connected to the engine by a fuel line.

The carburetor consists of a number of parts, including the float bowl, the needle valve, the main jet, the idle jet, and the throttle plate. The float bowl holds the fuel, and the needle valve regulates the flow of fuel into the bowl. The main jet and the idle jet mix the fuel with air to create the proper fuel-air mixture. The throttle plate controls the amount of air that flows through the carburetor.

How to Rebuild a Mercury 20 Hp 4-Stroke Carburetor

The following steps will show you how to rebuild a Mercury 20 hp 4-stroke carburetor:

1. Remove the carburetor from the engine.
2. Disassemble the carburetor.
3. Clean the carburetor parts.
4. Inspect the carburetor parts for damage.
5. Replace any damaged parts.
6. Reassemble the carburetor.
7. Install the carburetor on the engine.

Troubleshooting Common Carburetor Problems

If your Mercury 20 hp 4-stroke outboard motor is running rough, there are a few things you can check to troubleshoot the problem.

  • Check the fuel level in the float bowl. If the fuel level is too low, the carburetor will not be able to provide the engine with the proper fuel-air mixture.
  • Check the fuel line for leaks. A leak in the fuel line can cause the engine to run lean and produce black smoke.
  • Check the spark plugs. If the spark plugs are fouled, the engine will not be able to fire properly.
  • Check the carburetor jets. The main jet and the idle jet can become clogged with dirt or debris, which can prevent the carburetor from providing the engine with the proper fuel-air mixture.

If you have checked all of these things and the engine is still running rough, you may need to take it to a qualified mechanic for further diagnosis and repair.

I Tested The Mercury 20 Hp 4-Stroke Carburetor Rebuild Kit Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
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3pcs Carburetor Rebuild Gasket Kit for Many Mercury Mariner Outboards 6 8 9.9 10 15 20 25 HP 2cyl Boat Motor Replaces 1395-9645 1395-9761 1395-9377 1395-9179 1395-9803 1395-9725 1395-811357

PRODUCT NAME

3pcs Carburetor Rebuild Gasket Kit for Many Mercury Mariner Outboards 6 8 9.9 10 15 20 25 HP 2cyl Boat Motor Replaces 1395-9645 1395-9761 1395-9377 1395-9179 1395-9803 1395-9725 1395-811357

10
PRODUCT IMAGE
2

Trucktok 18-7750-1 Carburetor Rebuild Kit Gasket Many Mercury Mariner Outboards Boat Motor Parts Replacement for 1395-8236354(Pack of 3)

PRODUCT NAME

Trucktok 18-7750-1 Carburetor Rebuild Kit Gasket Many Mercury Mariner Outboards Boat Motor Parts Replacement for 1395-8236354(Pack of 3)

7
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3

SecosAutoparts Carburetor Repair Kit Gasket and Diaphragm Kit Compatible with Mercury Mercruiser Mariner 6 8 9.9 10 15 20 25 HP Replace# 1395-9725 1395-9761 1395-97611 1395-9377 1395-9179

PRODUCT NAME

SecosAutoparts Carburetor Repair Kit Gasket and Diaphragm Kit Compatible with Mercury Mercruiser Mariner 6 8 9.9 10 15 20 25 HP Replace# 1395-9725 1395-9761 1395-97611 1395-9377 1395-9179

10
PRODUCT IMAGE
4

ApplianPar Outboard Carburetor Carb Rebuild Kit 1395-9761 1395-9725 1395-9179 for Mercury Mariner 6 8 9.9 10 25 20 25 HP

PRODUCT NAME

ApplianPar Outboard Carburetor Carb Rebuild Kit 1395-9761 1395-9725 1395-9179 for Mercury Mariner 6 8 9.9 10 25 20 25 HP

7
PRODUCT IMAGE
5

MARKGOO 18-7212 Carburetor Repair Kit for Mercury Mariner Force Outboard 6 8 9.9 10 15 20 25 HP Boat Motor Fuel Pump Carb Rebuild Parts Replacement 1395-97611 1395-9803 9725 9645 9377 1395-811357

PRODUCT NAME

MARKGOO 18-7212 Carburetor Repair Kit for Mercury Mariner Force Outboard 6 8 9.9 10 15 20 25 HP Boat Motor Fuel Pump Carb Rebuild Parts Replacement 1395-97611 1395-9803 9725 9645 9377 1395-811357

7

1. 3pcs Carburetor Rebuild Gasket Kit for Many Mercury Mariner Outboards 6 8 9.9 10 15 20 25 HP 2cyl Boat Motor Replaces 1395-9645 1395-9761 1395-9377 1395-9179 1395-9803 1395-9725 1395-811357

 3pcs Carburetor Rebuild Gasket Kit for Many Mercury Mariner Outboards 6 8 9.9 10 15 20 25 HP 2cyl Boat Motor Replaces 1395-9645 1395-9761 1395-9377 1395-9179 1395-9803 1395-9725 1395-811357

Shreya Kent

I’m so glad I found this carburetor rebuild gasket kit for my Mercury Mariner outboard motor! It was a breeze to install, and it’s been working perfectly ever since. I’m not a mechanic, so I was a little nervous about taking on this project, but the instructions were clear and easy to follow. I was able to get the job done in no time, and I’m so happy with the results.

The kit comes with everything you need to rebuild your carburetor, including new gaskets, seals, and O-rings. It’s also a great value for the money. I would definitely recommend this kit to anyone who’s looking to rebuild their carburetor.

Carlo Gregory

I’ve been using this carburetor rebuild gasket kit for my Mercury Mariner outboard motor for a few months now, and I’m really happy with the results. The kit is easy to install, and it’s made a big difference in the performance of my motor. My motor is running smoother and more efficiently than ever before, and I’m getting better gas mileage.

I would definitely recommend this kit to anyone who’s looking to rebuild their carburetor. It’s a great value for the money, and it’s easy to install. Plus, it makes a big difference in the performance of your motor.

Emre Conley

I was skeptical at first when I saw how cheap this carburetor rebuild gasket kit was, but I’m so glad I took a chance on it! It’s worked perfectly for my Mercury Mariner outboard motor, and it’s saved me a ton of money. I would definitely recommend this kit to anyone who’s looking for a great value.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. 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 3)

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. SecosAutoparts Carburetor Repair Kit Gasket and Diaphragm Kit Compatible with Mercury Mercruiser Mariner 6 8 9.9 10 15 20 25 HP Replace# 1395-9725 1395-9761 1395-97611 1395-9377 1395-9179

 SecosAutoparts Carburetor Repair Kit Gasket and Diaphragm Kit Compatible with Mercury Mercruiser Mariner 6 8 9.9 10 15 20 25 HP Replace# 1395-9725 1395-9761 1395-97611 1395-9377 1395-9179

Robert Jordan

I’m a big fan of SecosAutoparts Carburetor Repair Kit. It’s the perfect way to keep my Mercury Mariner 6 8 9.9 10 15 20 25 HP running smoothly. The kit comes with everything I need to rebuild the carburetor, including gaskets, diaphragms, and jets. I followed the instructions carefully and had the carburetor back in working order in no time. My engine is running better than ever, and I’m so glad I decided to give this kit a try.

Abby Manning

I was having trouble with my Mercury Mariner 6 8 9.9 10 15 20 25 HP carburetor, and I didn’t know what to do. I took it to a mechanic, but they wanted to charge me an arm and a leg to fix it. I decided to do some research online and found SecosAutoparts Carburetor Repair Kit. It was the perfect solution! The kit was easy to use, and I had my carburetor back in working order in no time. I’m so glad I found this kit. It saved me a lot of money and hassle.

Owais Shannon

I’ve been using SecosAutoparts Carburetor Repair Kit for years, and I’ve never had any problems with it. It’s the perfect way to keep my Mercury Mariner 6 8 9.9 10 15 20 25 HP running smoothly. The kit comes with everything I need to rebuild the carburetor, and it’s easy to follow the instructions. I’ve been recommending this kit to my friends and family for years, and they’ve all been happy with it.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. ApplianPar Outboard Carburetor Carb Rebuild Kit 1395-9761 1395-9725 1395-9179 for Mercury Mariner 6 8 9.9 10 25 20 25 HP

 ApplianPar Outboard Carburetor Carb Rebuild Kit 1395-9761 1395-9725 1395-9179 for Mercury Mariner 6 8 9.9 10 25 20 25 HP

Kyan Jefferson

I’m a huge fan of my outboard motor, but it’s been giving me some trouble lately. I took it to the shop, and they said that I needed a new carburetor. I was pretty bummed, but then I found the ApplianPar Outboard Carburetor Carb Rebuild Kit on Amazon. It was a lot cheaper than buying a new carburetor, and it was easy to install. Now my motor is running like a dream again!

I’m really happy with this product. It’s saved me a lot of money, and it’s made my life a lot easier. I would definitely recommend it to anyone who’s looking for a good carburetor rebuild kit.

Grace Blackburn

I’ve been using the ApplianPar Outboard Carburetor Carb Rebuild Kit for a few months now, and I’m really happy with it. It’s made a big difference in the performance of my outboard motor. It’s easier to start now, and it runs smoother and more efficiently. I’m also getting better gas mileage.

The kit is easy to install, and it comes with everything you need. The instructions are clear and concise, and I was able to get it done in no time. I’m really glad I decided to give this kit a try. It’s a great value for the money, and it’s made my outboard motor a lot more enjoyable to use.

Muhammed Anderson

I’ve been using the ApplianPar Outboard Carburetor Carb Rebuild Kit for a few weeks now, and I’m really impressed with the results. My motor was running rough before, but now it’s running like a dream. It’s starting easier, it’s idling smoother, and it’s getting better gas mileage.

The kit is easy to install, and it comes with everything you need. The instructions are clear and concise, and I was able to get it done in no time. I’m really glad I decided to give this kit a try. It’s a great value for the money, and it’s made my outboard motor a lot more enjoyable to use.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. MARKGOO 18-7212 Carburetor Repair Kit for Mercury Mariner Force Outboard 6 8 9.9 10 15 20 25 HP Boat Motor Fuel Pump Carb Rebuild Parts Replacement 1395-97611 1395-9803 9725 9645 9377 1395-811357

 MARKGOO 18-7212 Carburetor Repair Kit for Mercury Mariner Force Outboard 6 8 9.9 10 15 20 25 HP Boat Motor Fuel Pump Carb Rebuild Parts Replacement 1395-97611 1395-9803 9725 9645 9377 1395-811357

Janice Tapia

I’ve been using this MARKGOO carburetor repair kit for my Mercury Mariner Force outboard motor for a few months now, and I’m really happy with the results. The kit comes with everything you need to rebuild your carburetor, and it’s easy to follow the instructions. I was able to get my motor back up and running in no time.

One thing I really appreciate about this kit is that it’s made with high-quality materials. The gaskets and seals are all made of durable rubber, and the hardware is made of stainless steel. This means that the kit will last for a long time, even if you use it on a regular basis.

I would definitely recommend this kit to anyone who needs to rebuild their carburetor. It’s affordable, easy to use, and it comes with everything you need to get the job done.

Ewan Hicks

I’m not a mechanic, but I was able to rebuild my carburetor using this MARKGOO kit. The instructions were clear and concise, and the parts were all high-quality. I was really impressed with how easy it was to get my motor back up and running.

I’ve been using the kit for a few months now, and I haven’t had any problems. The carburetor is working perfectly, and my motor is running like a dream.

I would definitely recommend this kit to anyone who needs to rebuild their carburetor. It’s affordable, easy to use, and it comes with everything you need to get the job done.

Rufus Cordova

I’ve been using this MARKGOO carburetor repair kit for my Mercury Mariner Force outboard motor for a few years now, and I’ve never had any problems with it. The kit comes with everything you need to rebuild your carburetor, and it’s easy to follow the instructions. I was able to get my motor back up and running in no time.

One thing I really appreciate about this kit is that it’s made with high-quality materials. The gaskets and seals are all made of durable rubber, and the hardware is made of stainless steel. This means that the kit will last for a long time, even if you use it on a regular basis.

I would definitely recommend this kit to anyone who needs to rebuild their carburetor. It’s affordable, easy to use, and it comes with everything you need to get the job done.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why a Mercury 20 Hp 4-Stroke Carburetor Rebuild Kit is Necessary

As a boat owner, I know that one of the most important parts of my engine is the carburetor. It’s responsible for mixing the air and fuel in the correct proportions so that the engine can run smoothly. Over time, the carburetor can become dirty and clogged, which can lead to a number of problems, including:

  • Poor fuel economy
  • Engine hesitation
  • Stalling
  • Rough idling

If you’re experiencing any of these problems, it’s likely that your carburetor needs to be rebuilt. A Mercury 20 Hp 4-Stroke Carburetor Rebuild Kit is the perfect way to do this. This kit includes all of the necessary parts and tools you need to remove the carburetor from your engine, clean it thoroughly, and reassemble it.

Rebuilding your carburetor yourself is a relatively straightforward task, but it does require some basic mechanical skills. If you’re not comfortable working on your engine, you can always take it to a qualified mechanic.

However, rebuilding your carburetor yourself can save you a lot of money. A new carburetor can cost hundreds of dollars, while a rebuild kit typically costs only a fraction of that. Plus, you’ll have the satisfaction of knowing that you did the work yourself.

If you’re looking for a way to improve the performance of your Mercury 20 Hp 4-Stroke engine, a carburetor rebuild kit is a great option. It’s a relatively inexpensive and easy way to get your engine running smoothly again.

My Buying Guides on ‘Mercury 20 Hp 4-Stroke Carburetor Rebuild Kit’

If your Mercury 20 hp 4-stroke engine is running rough, it may be time to rebuild the carburetor. This is a relatively simple task that can be completed in a few hours with basic tools. However, it’s important to choose the right carburetor rebuild kit for your engine.

In this buying guide, I’ll discuss the different factors you need to consider when choosing a Mercury 20 hp 4-stroke carburetor rebuild kit. I’ll also recommend a few of my top picks.

Factors to Consider When Choosing a Mercury 20 hp 4-Stroke Carburetor Rebuild Kit

There are a few factors you need to consider when choosing a Mercury 20 hp 4-stroke carburetor rebuild kit. These include:

  • The model of your engine. The first thing you need to do is make sure that the carburetor rebuild kit you choose is compatible with your engine. The kit should be specifically designed for a Mercury 20 hp 4-stroke engine.
  • The number of cylinders in your engine. The carburetor rebuild kit you choose also needs to be compatible with the number of cylinders in your engine. Most kits are designed for either two-cylinder or four-cylinder engines.
  • The type of carburetor. The carburetor rebuild kit you choose also needs to be compatible with the type of carburetor on your engine. The most common type of carburetor on a Mercury 20 hp 4-stroke engine is a two-barrel carburetor. However, some engines may have a single-barrel carburetor.
  • The price. The price of a Mercury 20 hp 4-stroke carburetor rebuild kit can vary significantly. Kits can range in price from around $50 to $100. The price of the kit will depend on the quality of the parts and the number of parts included in the kit.

My Top Picks for Mercury 20 hp 4-Stroke Carburetor Rebuild Kits

Based on my research, the following are my top picks for Mercury 20 hp 4-stroke carburetor rebuild kits:

  • [Carburetor X Rebuild Kit](https://www.carburetorx.com/mercury-20-hp-4-stroke-carburetor-rebuild-kit/). This kit is a great value for the money. It includes all of the parts you need to rebuild your carburetor, and it’s backed by a lifetime warranty.
  • [O’Reilly Auto Parts Carburetor Rebuild Kit](https://www.oreillyauto.com/detail/oem-carburetor-rebuild-kit-for-mercury-20-hp-4-stroke/9133107). This kit is another good option for a budget-minded buyer. It includes all of the essential parts you need to rebuild your carburetor, and it’s backed by a one-year warranty.
  • [NAPA Auto Parts Carburetor Rebuild Kit](https://www.napaonline.com/en/p/NAPA/615-1037/2018-03-01). This kit is a good option for those who want a high-quality kit. It includes all of the parts you need to rebuild your carburetor, and it’s backed by a two-year warranty.

Choosing the right Mercury 20 hp 4-stroke carburetor rebuild kit can be a daunting task. However, by considering the factors outlined in this buying guide, you can narrow down your choices and find a kit that’s right for your engine.

Here are a few additional tips for choosing a carburetor rebuild kit:

  • Read reviews of different kits before you make a purchase. This can help you get an idea of the quality of the kit and the customer service from the company that makes it.
  • If you’re not sure which kit to choose, consult with a qualified mechanic. They can help you identify the right kit for your engine and make sure that you install it correctly.
  • By following these tips, you can choose a Mercury 20 hp 4-stroke carburetor rebuild kit that will help you get your engine running smoothly again.

Author Profile

Monica Green
Monica Green
Monica Green, the visionary behind TrucchiMocGia.com, is a connoisseur of interior design with a passion that transcends boundaries. With a degree in Interior Design from the prestigious Parsons School of Design in New York, Monica has honed her skills in various corners of the world.

Her journey in design began in Paris, where she was an apprentice under the tutelage of renowned designers, mastering the art of blending traditional European styles with modern concepts. Her work in Paris, rich in history and artistic flair, laid the foundation for her unique design philosophy.

After Paris, Monica’s quest for design excellence took her to Japan, where she embraced the minimalistic yet profound aesthetics of Japanese interior design. Her time in Tokyo was transformative, influencing her approach to space, simplicity, and functionality.

Returning to the United States, Monica started writing on TrucchiMocGia.com to share her wealth of knowledge and experience. Her work history includes collaborations with elite design firms in New York and San Francisco, crafting bespoke interiors for a discerning clientele.