Sylvie Willis
If you're having trouble with your Husqvarna 372 chainsaw, it could be due to a faulty fuel line. Fuel lines are known to spring leaks, and with the new alcohol content in gasoline, they deteriorate faster than ever. If you suspect a fuel problem, you can try using canned gas to eliminate the variable. You can also check the fuel line for cracks and leaks, as well as ensure that it is not twisted or pinched. If you need to replace the fuel line, you can find aftermarket options at affordable prices, as well as OEM Husqvarna fuel lines.
| Characteristics | Values |
|---|---|
| Fuel line replacement | Cut the fuel line at an angle, tie a no.4 finishing nail to some strong fish line, then punch a hole in the tip of the fuel line and tie off the line. |
| Fuel line issues | Fuel lines are notorious for springing a leak. With the new alcohol content in gasoline, they deteriorate quickly. |
| Fuel problems | If you suspect a fuel problem, get a small can of canned gas and retry. If you think it's a fuel delivery problem, open the carb and check for debris ingress blocking. Another possibility is that the fuel or impulse lines are worn and cracked. |
| Fuel pipe leaks | If you're not getting fuel through, test your fuel pipe for leaks. |
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What You'll Learn
Check for fuel leaks
If your Husqvarna 372 is not getting fuel through, you should check for fuel leaks. One user on an online forum suggested that a stuck fuel meter needle could be the cause of this issue. This often happens when saws are stored dry, and a tiny bit of oxidation on that part will make it difficult to get the saw running again.
To check for fuel leaks, you can try the following:
- Check the fuel line for cracks. One user reported that their fuel line was cracked in several places, which could potentially cause a leak.
- Check the fuel line/filter for pinching or twisting. One user reported that their fuel line/filter was slightly twisted, which could potentially cause a blockage and prevent fuel from flowing through.
- Check the tank vent. One user reported that their Husqvarna 372XP leaked fuel when the saw was on its side and they were filling the tank. They suspected that the leak was coming from the tank vent.
- Check the fuel tank. One user reported that they found a leak at the tank where the vent line came out.
- Check the fuel pipe for leaks. One user suggested testing the fuel pipe for leaks if fuel is not getting through.
It is important to note that if you are using Husqvarna/Stihl fuel, it is not necessary to empty the tank to store the saw. This fuel is not like petrol and can be left in the tank.
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Check the fuel line for cracks
If you suspect a fuel problem with your Husqvarna 372, you should check the fuel line for cracks. This is because any fuel leak, however small, can cause a fire.
One way to check for cracks in the fuel line is to inspect the hose for any visible damage. The exterior of a faulty fuel hose will show apparent cracks, and you may also notice fuel leaks or a strong fuel smell. If you notice any of these signs, you should find a technician as soon as possible to fix the issue.
If you cannot perform an inspection yourself, or if you have found signs of a fuel line leak or damage, you should contact a mechanic as soon as possible. They will know what to look for and be able to fix it for you. Regular check-ups by a mechanic can also catch early signs of wear and tear in your fuel system, including the fuel line.
To prevent issues with your fuel line, you should use high-quality fuel, as this reduces the risk of clogging and corrosion in the fuel line, prolonging its lifespan. You should also avoid driving in harsh weather conditions, such as extremely cold days or corrosive environments, as this can damage the fuel line.
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Cut the fuel line at an angle
Cutting the fuel line at an angle is a crucial step when working with Husqvarna fuel lines. This technique is especially useful when dealing with a cracked or damaged fuel line that needs to be replaced. Here are some detailed instructions and considerations for this process:
When cutting the fuel line, it is recommended to use a sharp angle. This means that the cut should not be perpendicular to the length of the hose but rather at a diagonal or oblique angle. This angled cut creates a pointed end on the fuel line, making it easier to insert and pull through the gas filler opening. This method can be helpful when dealing with a stubborn fuel line that is difficult to feed into the tank.
There are a variety of tools that can be used to cut the fuel line at an angle. Some options include a sharp knife, a tubing cutter, a small pipe cutter, or even a pair of snips. When selecting a tool, it is important to prioritize a clean and straight cut without any jagged edges that could potentially damage the fuel line or surrounding components. A greased fine-tooth hacksaw blade can also be used, but it is crucial to work outside with good ventilation to minimize the risk of inhaling fumes.
Additionally, it is worth noting that cutting the fuel line is just one aspect of the job. As one user pointed out, it is often necessary to tie a finishing nail to a strong piece of fishing line, punch a hole in the tip of the fuel line, and then tie off the line. This allows the nail to be pulled through the fuel line entry hole and out the fuel filler hole, acting as a guide for the new fuel line.
Overall, cutting the fuel line at an angle is a helpful technique when working with Husqvarna fuel lines. It simplifies the process of feeding the line into the tank and can be a crucial step in getting your chainsaw running smoothly again.
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Check the spark plug
To check the spark plug of your Husqvarna 372, start by removing the spark plug. You can do this by pulling it out through the spark plug hole, usually located at the top of the engine. Once the spark plug is removed, inspect it for any signs of damage or wear.
If the spark plug is dry, it indicates that fuel is not reaching the spark plug, which could be due to a clogged fuel filter or a faulty fuel line. In this case, you may need to replace the fuel filter or repair/replace the fuel line.
Another possible reason for a dry spark plug is that the spark plug itself is faulty. To check this, you can try cleaning the spark plug and reinserting it. If the issue persists, you may need to replace the spark plug with a new one.
It's important to ensure that the spark plug is properly gapped, which means that the gap between the centre electrode and the ground electrode is set to the correct specification. This information can usually be found in the owner's manual or repair guide for your Husqvarna 372.
If the spark plug is wet, it could indicate that the engine is flooded with fuel. In this case, you would need to address the issue by draining the excess fuel and ensuring that the carburettor is properly adjusted.
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Check for debris ingress blocking the fuel line
If your Husqvarna 372 is not starting, you may have debris ingress blocking the fuel line. This could be due to a crack in the fuel line, which can be checked by removing the fuel line through the gas filler opening. If the fuel line is cracked, it should be replaced.
Debris can enter the fuel tank in several ways. In cars that have been stored for long periods, debris can come from corrosion in the tank or deteriorating tank lining material. Additionally, some fuels can support algae growth, which can cause debris and clog the fuel filter. Even if you are only putting gas and cleaners into your tank, there can still be debris that accumulates over time.
To check for debris ingress blocking the fuel line, you can try the following steps:
- Remove the fuel line from the tank by cutting it at a sharp angle and pulling it out through the gas filler opening.
- Visually inspect the fuel line for any cracks, debris, or blockages.
- If the fuel line appears clear, check the fuel filter for any debris or clogging.
- If debris is present, clean or replace the fuel line and/or fuel filter as needed.
- Reinstall the fuel line and filter, ensuring that all connections are secure and that there are no leaks.
It is important to regularly check your fuel line and filter for any debris or wear and replace them as necessary to prevent engine damage and maintain optimal performance.
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Frequently asked questions
If you suspect a fuel problem, first eliminate the variable by getting a small can of canned gas and retrying. If you think it's a fuel delivery issue, open the carb and check for debris ingress blocking. Another possibility is that the fuel or impulse lines are worn and cracked.
If you are not getting fuel through, your fuel pipe may be leaking. Another thing to watch out for is a stuck fuel meter needle, which often happens when saws are stored dry.
You can cut the hose at a sharp angle so that it is pointed at the end. This will help you get it started and pull it through.
Tie a no.4 finishing nail to some strong fish line, then punch a hole in the tip of the fuel line and tie off the line. Put the saw on its side and let the nail drop through the entry hole for the fuel line and out through the fuel filler hole. Then, with some oil on the fuel line, pull it through.
It is not necessary to empty the tank to store the saw. In fact, this may lead to oxidation and cause hours of grief. Instead, it is recommended to leave good fuel in the tank.
