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Carburetor Repair & Maintenance How-To Guide


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Posted February 3, 2014 In


Your Briggs and Stratton carburetor is an integral part of your small engine, so it’s important to keep it running smoothly for the overall health of your lawn mower, snow blower, and other outdoor power equipment. In this article, we’ll give you tips on carburetor maintenance and repair to keep your small engine healthy – so that you can use your power equipment worry-free!

Before starting any carburetor maintenance or repair work, make sure to consult the Briggs & Stratton operator's manual for the machine you will be working on and follow all safety precautions.

Carburetor Maintenance: Cleaning & Adjusting Small Engine Carburetors

Performing regular carburetor maintenance is a great way to save yourself money, headaches, and hassle down the road.

Most carburetor problems are caused by a variety of blockages from thinks like dirt, varnish, and gasoline deposits. It's easy for the main fuel jet to become blocked, but luckily it's a pretty easy fix. Regular carburetor maintenance will help you avoid problems in the future.

You can clean the main fuel jet (located in your carburetor's fuel bowl nut) with carburetor cleaner and compressed air to blow out loosened debris. Carburetor cleaner dissolves deposits in your carburetor and choke, and consequently can reduce your need for maintenance, repair, and downtime, while improve starting for all 2-cycle and 4-cycle engines.

Carburetor Maintenance and Repair

After cleaning the carburetor, another key step for some float-type carburetors is adjusting the idle speed and mixture. Full instructions for Adjusting a Briggs and Stratton Carburetor are available in our FAQ section.

Performing regular small engine maintenance and tune-ups are another way to maintain your carburetor and prevent engine problems. Briggs & Stratton engine tune--up kits contain new air filters, spark plugs, oil, and easy step-by-step instructions. You can find engine tune-up kits in the Briggs & Stratton official parts store online.

Troubleshooting Carburetor Problems in Your Lawn Mower or Small Engine

Sometimes, if your carburetor is gummed up beyond simple maintenance, it may be necessary to rebuild or overhaul it. You can find detailed carburetor repair instructions in our "Overhauling the Carburetor" FAQ article.  Carburetor problems are often at the root of many issues with outdoor power equipment. By performing carburetor repair with official Briggs and Stratton parts and cleaner, you can help ensure that your small engine is healthy and running right.

If you have any questions about performing carburetor repair on your small engine, official Briggs and Stratton dealers are here to help. Your local Briggs and Stratton dealer can assist with any small engine repair and maintenance issues you may have. Performing regular carburetor maintenance will save you trouble down the road, so make sure you don't neglect it - and then you can get back to enjoying using your Briggs & Stratton outdoor power equipment!

The primer bulb on the carb quit working - whar happened?

Asked by: don78

B&S riding lawn mower with engine 21B807-0239E1, will not fire. Niki carb cleaned (no debris seen), all holes blown, spark plug changed still no fire. Lubricated cylinder. Good compression and fires as long as starting fluid sprayed lightly.Help please.

Asked by: Das2

I have a Snapper 9hp Briggs Mower that was sitting for roughly a year. And when I started it up (I Was Supprised It Started Up 1 Pull) It Ran For About 30 Seconds Then Started Missing Really Bad And It Died. What Could Cause That? 

Asked by: lol1345

I have a craftsman mower 5.50 when I start it it run for 30seconds then it dies when I try to start it again it last only 30seconds and it dies what do I need to do to fix this problem 

Asked by: junior459
That Is Probally The Carburetor. Have You Left It For A Long Time With Gas In  It?
Answered by: lol1345
Date published: 2014-08-20

I have 11 horse Briggs and Stratton and the carburetor keeps flooding after I replaced the needle and seat what do I try next

Asked by: Chevy66
Check and replace the float and overhauling the complete carburetor. Here is a link that will help with this: http://bit.ly/15ihyvq
Answered by: Nicole_BriggsStratton
Date published: 2014-08-14

I have a Briggs & Stratton 6.75 push mower. Model 11A-B16M029, Serial number 11200K11585. Last time I used it a few weeks ago it would die on me every few minutes then just quit after about 30 minutes. Now I can't get it to turn over at all.

Asked by: Jmonroe
To locate any information on your engine, you will first need the model type and code. Please see the following link for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Nicole_BriggsStratton
Date published: 2014-08-08

why would oil come out of the carburetor on a 4.5 Briggs and Stratton push lawn mower

Asked by: blondie16
Oil in the carburetor or air filter is likely coming from the breather. You will want to make sure that the breather tube is not bent, kinked, or clogged in any way. If it is not you may need to replace the breather tube. You will also want to check the o-rings and seals on the dipstick assembly to make sure that they are intact.
Answered by: Nicole_BriggsStratton
Date published: 2014-08-08

I put a carb kit into a craftsman wheeled weed wacker. I can't get the carburetor to slide all of the way into place. Is there a trick to fit it back on? model number is 917-773700.

Asked by: doctordee
To locate any information on your engine, you will first need the model type and code. Please see the following link for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model type and trim into the search fields.
Answered by: Nicole_BriggsStratton
Date published: 2014-08-08







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