Gas Chainsaw: Why does my chainsaw run roughly?
If the chainsaw fuel has been in the tank unused for months, it can pick up moisture and fail to ignite (that's why you should drain the fuel before storing the chainsaw or add gas treated with fuel stabilizer). Replace the fuel with fresh gas if it's old and not treated with stabilizer. You might also need to replace the fuel filter at the same time.
Doing preventive maintenance including a tune-up also helps the engine run smoothly. Check the fuel lines for cracks and replace them if necessary. If you still have problems after checking those issues, consider replacing or rebuilding the carburetor.
THESE REPAIRS MAY HELP SOLVE YOUR GAS CHAINSAW PROBLEM
Rebuild the chainsaw carburetor
Rebuild kits are available for most carburetors. The kit contains essential components for rebuilding a carburetor, such as diaphragms, seals and gaskets. You can sometimes fix a fuel supply problem by dismantling and cleaning a carburetor. Use the kit to rebuild the carburetor after cleaning it.
Rebuild the chainsaw carburetor
How to rebuild a chainsaw carburetor
A clogged carburetor is one reason a chainsaw won't start. This repair guide gives step-by-step instructions for rebuilding a chainsaw carburetor, which is a cost-effective alternative to replacing it.
Replace the chainsaw carburetor
The carburetor mixes air and gasoline in the proper proportions to create a combustible gas. If the engine starts and then sputters, or doesn't start at all due to lack of fuel, you might need to replace carburetor. It's often more cost effective and practical to replace the carburetor rather than rebuild it.
Chainsaw carburetor
How to replace a chainsaw carburetor
If your chainsaw struggles to start or won't start at all, the carburetor could be clogged or its gaskets could be worn. This repair guide gives step-by-step instructions for replacing a chainsaw carburetor in less than 30 minutes.
Replace the chainsaw fuel lines
Fuel lines become brittle over time and can crack or tear. Replace a fuel line that's brittle or damaged. Be careful to install new fuel lines on the engine the same way the original fuel lines were configured.
Chainsaw fuel lines
How to replace chainsaw fuel lines
If your chainsaw doesn't start even though it has plenty of gas, the engine might not be getting fuel because a fuel line is clogged or cracked. This DIY repair guide shows how to replace chainsaw fuel lines in 30 minutes.
Do chainsaw preventive maintenance
Proper maintenance ensures that a chainsaw runs smoothly and works properly. Refer to your owner's manual for guidance in maintaining the chain saw. Replace parts such as the air filter, fuel filter and spark plug.
Do chainsaw preventive maintenance
Symptoms for gas chainsaws
Choose a symptom to see related chainsaw repairs.
Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…
Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…
Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…
Repair guides for gas chainsaws
These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.
How to rebuild a chainsaw carburetor
If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…
How to replace chainsaw fuel lines
The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…
How to replace a chainsaw carburetor
If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…
Articles and videos common to all chainsaws
Use the advice and tips in these articles and videos to get the most out of your chainsaw.
Learn about the most common replacement parts for chainsaws and how they can help you fix chainsaw problems.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…