HURI Air Filter Tune Up Maintenance Kit User Manual

Product Overview

This HURI Air Filter Tune Up Maintenance Kit is designed to replace essential components for various Poulan, Craftsman, Poulan Pro, and Husqvarna chainsaw models, typically those with 34cc, 38cc, 40cc, and 42cc engines. It provides the necessary parts to perform routine maintenance and restore optimal performance to your equipment.

The kit includes:

• Two (2) Air Filters
• Two (2) Fuel Lines (2 feet each)
• One (1) Primer Bulb
• Two (2) Fuel Filters
• One (1) Spark Plug

This kit is compatible with a wide range of models, including but not limited to: Poulan 1900, 1950, 1975 Woodshark, 2025, 2050, 2055, 2075, 2150, 2155, 2175, 2250, 2350, 2375, 2450, 2550, PP210, PP220, PP221, PP230, PP260, PPB1634LE, PPB1838LE, S1634 Snapper, and S1838 Snapper models.

Image: The HURI Air Filter Tune Up Maintenance Kit components, including two green foam air filters, two white fuel filters, two clear fuel lines (one white, one yellow), one black primer bulb, and one spark plug.

Installation and Setup

Proper installation of these components is crucial for the safe and efficient operation of your chainsaw. Always refer to your chainsaw's specific service manual for detailed instructions and safety precautions before beginning any maintenance.

1. Air Filter Replacement

1. Ensure the chainsaw engine is cool and spark plug wire is disconnected.
2. Locate and open the air filter cover, typically found on the side of the engine housing.
3. Remove the old air filter. Clean any debris from the air filter housing.
4. Install the new foam air filter, ensuring it is seated correctly to prevent unfiltered air from entering the carburetor.
5. Securely close the air filter cover.

2. Fuel Line and Fuel Filter Replacement

Replacing fuel lines can be challenging due to tight spaces. It is recommended to drain the fuel tank before starting this procedure.

1. Drain all fuel from the tank into an approved container.
2. Identify the existing fuel lines and their connections to the carburetor, primer bulb, and fuel tank. Note which line is the supply and which is the return.
3. Carefully disconnect and remove the old fuel lines and fuel filters from the tank and carburetor.
4. To install new fuel lines into the tank, a common technique involves feeding a thin wire or fishing line through the tank's fuel line holes from the carburetor side, then pulling the new fuel line through. Cut the end of the new fuel line at a sharp angle and pierce it slightly to attach the wire for pulling. Lubricate the line with a small amount of 2-stroke oil to ease insertion.
5. Attach the new fuel filters to the ends of the fuel lines that will reside inside the fuel tank. Ensure the filters are fully submerged when the tank is filled.
6. Connect the other ends of the fuel lines to the appropriate ports on the carburetor and primer bulb.
7. Refill the fuel tank with the correct fuel mixture.

3. Primer Bulb Replacement

1. Disconnect the fuel lines attached to the old primer bulb.
2. Remove the old primer bulb assembly. This may involve unscrewing or prying it out, depending on your chainsaw model.
3. Install the new primer bulb, ensuring it is oriented correctly and securely seated.
4. Reconnect the fuel lines to the new primer bulb, ensuring proper routing and connection to the carburetor and fuel tank lines.

4. Spark Plug Replacement

1. Ensure the engine is cool.
2. Locate the spark plug and carefully pull off the spark plug wire.
3. Use a spark plug wrench to loosen and remove the old spark plug.
4. Inspect the old spark plug for signs of wear or fouling.
5. Thread the new spark plug into the cylinder head by hand to prevent cross-threading.
6. Once hand-tight, use the spark plug wrench to tighten it an additional 1/4 to 1/2 turn, or according to your chainsaw's manual specifications. Do not overtighten.
7. Reconnect the spark plug wire firmly.

Operating Considerations

After installing the maintenance kit components, it is important to perform a test run to ensure proper function. Always operate your chainsaw in a well-ventilated area and wear appropriate personal protective equipment (PPE).

• Fuel Priming: After replacing fuel lines and filters, repeatedly press the primer bulb until fuel is visible and flows freely, indicating the fuel system is primed and air-free.
• Starting Procedure: Follow your chainsaw's specific starting procedure. If the engine does not start or runs rough, refer to the Troubleshooting section.
• Initial Run: Allow the engine to warm up for a few minutes before putting it under load. Listen for unusual noises or vibrations.

Maintenance Schedule

Regular maintenance using this kit's components will extend the life and improve the performance of your chainsaw. The frequency of replacement depends on usage and operating conditions.

• Air Filter: Inspect before each use and clean as needed. Replace every 25-50 hours of operation, or more frequently in dusty conditions. A clogged air filter can lead to reduced engine power and increased fuel consumption.
• Fuel Filter: Replace annually or every 50-100 hours of operation. A dirty fuel filter can restrict fuel flow, causing the engine to run lean or stall.
• Spark Plug: Inspect annually or every 50 hours. Replace if electrodes are worn, fouled, or if the engine experiences starting difficulties or misfires.
• Fuel Lines: Inspect annually for cracks, brittleness, or leaks. Replace immediately if any damage is observed, as damaged fuel lines can lead to fuel leaks and fire hazards.
• Primer Bulb: Replace if it becomes cracked, stiff, or fails to draw fuel effectively.

Troubleshooting

If your chainsaw experiences issues after installing the maintenance kit, consider the following common problems and solutions:

Product Specifications

Warranty and Support

Specific warranty information for this HURI product is not provided in this manual. Please refer to the product packaging or contact the retailer/manufacturer directly for details regarding warranty coverage and customer support.

For further assistance or technical inquiries, it is recommended to consult the official service manual for your specific chainsaw model or contact a qualified service technician.