How to Clean a Husqvarna Chainsaw Carburetor: A Step-by-Step Guide
Trial and Error Leads to Expertise: For years, I've been working with various woodworking projects, and the best results often come from cleaning or replacing the carburetor of a Husqvarna chainsaw. Although it seems a daunting task, with the right approach, it can be done swiftly and effectively. In my experience, taking apart and blowing out the carburetor, or simply replacing it, can save significant downtime.
Disclaimer
I have created a number of detailed plans that can help you create beautiful pieces of furniture and other woodworking projects. You can find them on my Quora Profile.
Steps to Cleaning a Husqvarna Chainsaw Carburetor
Cleaning a carburetor on a Husqvarna chainsaw involves a few straightforward steps. Whether it's a minor clean-up or a complete overhaul, here’s how to tackle it effectively:
1. Assessment
First, check the carburetor for leaks. If the seals have gone bad, you’ll need to take the carburetor apart. If it just needs a thorough cleaning, you can clean it in place. A dirty carburetor can cause your chainsaw to idle too high or not have enough power.
2. Cleaning the Carburetor
To clean the carburetor, you can do it in two ways: dismantle the carburetor and clean each part, or clean it on the saw while it’s running. To clean the carburetor on the chainsaw, make sure the air filter is clean and spray carburetor cleaner onto the carburetor while the engine is running (use a saw stand to avoid any accidents).
3. Dismantling and Cleaning
If you need to dismantle the carburetor, start by unbolting it from the chainsaw. Then, remove the bowl and the fuel needle where the fuel is released into the air flow. Clean all parts thoroughly with carburetor cleaner and compressed air. Ensure to pay special attention to the one-way flap, which is a critical gasket often overlooked. This gasket is the fuel pump and needs to be replaced.
Do not forget to clean the passageways and, if necessary, replace the gaskets to avoid any malfunctions. Reassemble the carburetor carefully and perform a compression test to ensure everything is working correctly.
4. Compression Test
A compression test is essential to determine the health of the chainsaw. If the compression is low (around 60-70 lbs), the chainsaw will be difficult to start and will have reduced power. High compression (around 80-90 lbs) indicates that it’s time to clean the carburetor.
5. Proper Mixing Ratio for Best Performance
To achieve optimal performance, always use the correct oil-to-gasoline mixture. A 50:1 mixture is recommended, and using a high-grade synthetic oil is highly advisable. This not only extends the life of your chainsaw but also ensures it runs smoothly and efficiently.
Conclusion
Regular maintenance and cleanings can significantly enhance the performance and longevity of your Husqvarna chainsaw. By following these steps, you can quickly and easily clean or replace the carburetor, ensuring your chainsaw stays in top condition and ready for any job. Happy cutting!