1 min read
How to perform primer bulb replacement in a small engine carburetor?
A primer bulb is important because it is helps to fill the carburetor with the correct amount of fuel. It does this by pulling fuel through the fuel...
Frequently Asked Questions
Troubleshooting - Repair
4 min read
How do I troubleshoot & repair common small engine problems?
Having engine problems? Use this comprehensive guide when troubleshooting issues with your lawn mower, snow blower or other outdoor power products -...
1 min read
Why Does My Engine Backfire or Afterfire?
Is the small engine on your lawn mower, snow blower or outdoor power equipment making loud noises? This FAQ from Briggs & Stratton will help you...
2 min read
Why won’t my lawn mower engine starter engage?
It can be frustrating when your lawn mower or small engine starter won’t engage, but there are solutions you can take to prevent and correct starter...
9 min read
Small Valve Maintenance & Repair
Valves control the flow of fuel vapor into the combustion chamber and the flow of exhaust gases leaving the engine. Faulty or dirty valves may stick...
4 min read
How to test and repair small engine ignition system problems?
Is there no spark in the engine of your lawn mower, snow blower or outdoor power equipment? Follow this guide to test your ignition system -...
2 min read
How to find, fix and install a lawn mower fuel pump?
In this Briggs and Stratton FAQ, we breakdown how to check, fix and install the fuel pump on your lawn mower or snow blower. What Is the Fuel Pump &...
3 min read
How to Inspect Your Small Engine for Brake Replacement
In most walk mowers, a well-maintained brake system should stop the engine and any attached cutting equipment within three seconds whenever you step...
2 min read
How do I inspect my small engine muffler for repair or replacement?
Small engine noise is caused by hot gases being forced out of the cylinder during each exhaust stroke. A muffler’s job is to reduce that exhaust...
1 min read
Why is White / Blue Smoke Coming from the Engine?
Is your engine running, but emitting white or blue smoke? Find out what could be causing white smoke from the engine and how to go about fixing the...
4 min read
How do you rebuild or overhaul a small engine carburetor?
Rebuilding the carburetor may be required if basic adjustments don’t fix your small engine problems or improve performance on your lawn mower or...
1 min read
Why is Fuel Mixing with Engine Oil in the Crankcase?
If you notice gas mixed in with your engine oil, you should follow these instructions to address a potential fuel leak in your lawn mower, snow...
1 min read
Why is there a gas leak by the small engine air filter & vent tube?
Gas leaks around the air filter usually indicate problems with valves inside your engine and how it is processing gas. Read below to learn what...