Briggs & Stratton (Classic) Carb Cleaning

Starting and stopping is a sure sign your carburetor is blocked. It's a common fault. Cleaning the carb will fix the it.

This video walks you through the removal, cleaning and refitting of a very common B&S carburetor fitted to Classic/Sprint/Quattro engines.



Briggs & Stratton (Intek and Quantum) Carb Cleaning

This video covers the removal, cleaning and refitting of the carburetor fitted to the Intek and Quantum engines.


Briggs & Stratton (E Series) Carb Clean

This video walks you through the process of cleaning your B&S E series engine carb. We'll cover removal, teardown, clean and reinstall.


Kohler Carb Clean

This video walks you through the process of cleaning your Kohler carburetor. We'll cover carb removal, teardown, clean and reinstall.


Honda mower Carb Clean

This video walks you through the process of cleaning your Honda carburetor. We'll cover carb removal, teardown, clean and reinstall.

Over View

You’ll find useful resources on this page, tips, links to tools, parts and supplies required to complete your repair.

Lawn mower carburetor problems are the most common cause of starting then dying, no starts, rough running, surging engine, lack of power, hard starting.

Carburetors suffer from blockages especially after the winter hibernation. Cleaning usually takes care of the problem, however replacing the carburetor is often a better solution. Carburetors aren’t expensive or difficult to fit.

Before working on your mower be sure to remove the plug wire to prevent accidental starting, see “Repair Safety Video”.

Tools & Parts

To nail this procedure you may need the following tools, parts and supplies.


WD40

This is first on the list for good reason, Wd solves a ton of problems. I won't work without it, because I can't. Picture links to Amazon.com

Ratchet Tool Set

Before we can do anything, we'll need tools. I've selected this set as I own some Craftsman tools and while I have worn some out, they did do a lot of work. So I expect this set will last the occasional user quite a long time.

This set carries both metric and standard sockets and that's important, because some mowers will have both type of fastener sizes. Set includes spark plug sockets. Picture links to Amazon.com


Gas & Oil Syphon

You'll find this tool really useful if you need to drain the gas tank, and you will if the gas is stale. The siphon will remove it without fuss or mess and it can be used for extracting the oil too. Picture links to Amazon.com

Gas Line Clamp

Some small engines will have a gas tap, which is really handy when removing the carburetor, stops gas flowing all over the shop. However most engines won't have one, these useful clamps simply squeeze the fuel line and prevent a spill while you perform surgery. Picture links to Amazon.com

Carb Cleaner

When cleaning your carburetor you'll need this stuff. Gumming is a sticky substance that's hard to shift. The carb cleaner will remove it, however if your carb is really bad, save yourself some work, go ahead and buy a new carburetor. Picture links to Amazon.com

Cleaners

You'll find these nylon brushes super useful when it comes time to clean those tiny passageways of the carburetor and jet. Use these in conjunction with the WD Carb cleaner. Picture links to Amazon.com

Gas Stabilizer

Mix this with the gas when winterizing your small engine. Gas isn't what it used to be, it goes stale, in some cases after just one month. Bad gas causes gumming and that's a carburetor killer. Stabilizer will save you money and stress in the long run. Picture links to Amazon.com

Gas Can

Briggs and Stratton refuel can. These guys got it right, I like it a lot, it offers press button control, no fuss no mess and no funnel required. Picture links to Amazon.com

Briggs & Stratton

This is a popular Hooai Carburetor fitted to walk behind mowers with Quantum engines, but check the engine codes listed. This is an Auto choke carburetor.

This carburetor has a fuel feed bolt in the base of the bowl, dirt in the bolt feed hole is a common issue. Picture links to Amazon.com


Briggs & Stratton

This is a after market replacement carburetor for the Briggs 4-7hp engines. This is the primer bulb style carburetor.

This carburetor has a fuel feed bolt in the base of the bowl, dirt in the bolt feed hole is a common issue.

It comes with a replacement air filter/primer bulb housing gasket. Without this gasket your primer bulb won't work. Picture links to Amazon.com


Briggs & Stratton

This is an original Briggs carburetor fitted to walk behind mowers. Part # 593261, these guy's are made from plastic and I see lots of issues with them. The jet holes are particularly tiny and block so easily. There are a few different types and all look alike, so use part numbers to check before ordering. Picture links to Amazon.com

Briggs & Stratton

This is a popular carburetor fitted to the classic range of Briggs and Stratton engines. This engine is fitted to many different walk behind lawn mower mower models like, MTD, TORO, Murray, Poulan, Craftsman and many more. Picture links to Amazon.com

GCV190 Carburetor

This is a Hipa GCV 190 carburetor fitted to the Honda GCV190 engine only, not the GVC160 or GCV135. It comes with gaskets, plug, air and fuel filter and fuel line.

Fitting isn't difficult, just a little tedious, take your time and some pictures of where the old gaskets are positioned and their orientation. Picture links to Amazon.com


GCV160/135 Carburetor

This is a Hooai GCV 160 carburetor fitted to the Honda GCV160 and GCV135 engine only, not the GVC190. It comes with gaskets, plug, filter and fuel line.

Fitting isn't difficult, just a little tedious, take your time and some pictures of where the old gaskets are positioned and their orientation. Picture links to Amazon.com


Drill/Screw Gun

I use a Dewalt screw gun (also a drill) in the workshop to speed up the process of removing engine covers, carburetor bolts, Armature bolts etc. It's a brushless motor and as tough as nails, I driven over it a few times - still works great! Batteries are interchangeable and so if you have a Dewalt product already you won't need the battery. Picture links to Amazon.com
Auto Technician and Writer at | Website

John Cunningham is an Automotive Technician and writer on Lawnmowerfixed.com. I've been a mechanic for over twenty years, I use my knowledge and experience to write "How to" articles that help fellow gear-heads with all aspects of mechanical repairs, from lawn mowers to classic cars.