If your chainsaw is running rough, do you know how to troubleshoot the problem. Check or test the most frequent causes we listed here:

Cause 1: The carburetor might be clogged

If you haven’t used your chainsaw for a long time and left fuel in it. Bad fuel won’t burn properly, and it will cause your carburetor become very sticky and clog, resulting the engine to stall or running rough. Try cleaning it with carburetor cleaner, if the cleaning job is effective, you should rebuild or just replace the carburetor. Here at Hipaparts.com, you can find high quality carburetor rebuild kit or new carburetor at a good price.

Cause 2: The air filter might be dirty

If the air filter is clogged or dirty, the engine will run roughly as the engine get too much fuel and not enough air. Inspect the air filter to make sure it’s not clogged. If it is, replace it.

Cause 3: Fuel delivery problem - inspect the fuel filter and fuel line

The fuel filter might be clogged if you leave old fuel in the chainsaw. Over time, sticky fuel can clog up the fuel filter and cause engine to run roughly. If you haven’t used your chainsaw for a long time, we suggest you to replace the fuel and fuel filter, and once you have drained the fuel tank, check the fuel line for damage.

Cause 4: Plugged spark arrestor

In the last blog, we mentioned that a plugged spark arrestor will cause the chainsaw to run stalls. Actually if the spark arrestor is clogged, the chainsaw may also run roughly. To clean the arrestor, remove it and clean it with a wire brush. Replace it if needed.

We’d be happy to receive feedback on whether it works for you! At Hipaparts, we are dedicated in providing a wide range of high-quality small engine parts and also repair skills. If you have more questions towards small engine, here at www.hipaparts.com, we are happy to help!