Poulan Plb26. Gas Cap

1. Check the ventilation system: A clogged or faulty vent in the gas cap can create a vacuum, causing a fuel flow problem. Ensure that the vent is clear and free from any obstructions.

2. Inspect the fuel lines: Even though you mentioned replacing the gas lines, it's worth double-checking for any kinks, cracks, or leaks that could be affecting the fuel supply. Proper fuel flow is crucial for keeping the engine running smoothly.

3. Check the fuel tank: Make sure the fuel tank is clean and free from debris that could be blocking the fuel lines or causing issues with the flow of fuel. Also, confirm that the fuel filter is correctly installed and not clogged.

4. Seek professional assistance: If you've tried the above steps and the issue persists, it might be best to take your leaf blower to a professional to have it inspected and diagnosed. They can provide a more accurate assessment and recommend any necessary repairs.

It sounds like you're having a tough time with your Poulan PLB26. I'll try my best to help you troubleshoot the problem.

First, let's recap what you've already done:

Replaced the carburetor

Replaced the gas lines

Replaced the gas filter

Cleaned the gas tank

Cleaned the gas cap

Verified that you have 80 pounds of compression

Despite all of this, the Poulan still stalls out when you tighten the gas cap. This is a strange problem, but I have a few ideas.

One possibility is that the gas cap is not venting properly. When you tighten the gas cap, it creates a vacuum in the gas tank. If the gas cap is not venting properly, this vacuum can cause the fuel pump to starve for fuel and the engine to stall.

Another possibility is that there is a leak in the fuel system. This leak could be anywhere in the system, from the gas tank to the carburetor. When you tighten the gas cap, it pressurizes the fuel system and makes the leak more likely to occur.

Finally, it's also possible that there is a problem with the ignition system. If the spark plug is not firing properly, it can cause the engine to stall. When you tighten the gas cap, it may be causing the ignition system to malfunction.

Here are a few things you can try to troubleshoot the problem:

Check the gas cap vent. Make sure that the vent hole in the gas cap is clean and unobstructed. You can try blowing into the hole to make sure that it is clear.

Check for fuel leaks. Inspect the fuel lines, fuel filter, and fuel tank for any leaks. You can use a flashlight and a mirror to help you see. If you find any leaks, repair them or replace the damaged parts.

Check the spark plug. Remove the spark plug and inspect it for damage. If the spark plug is damaged, replace it.

Check the ignition coil. The ignition coil is responsible for generating the spark that ignites the fuel mixture in the engine. If the ignition coil is not working properly, it can cause the engine to stall. You can test the ignition coil with a multimeter.

If you've tried all of the above and the Poulan is still stalling out, it's time to take it to a qualified mechanic. They will be able to diagnose the problem and get your Poulan running smoothly again.

Good luck!