Husqvarna 345 Owners: 6 Common Problems to Watch Out For

If you’re a homeowner with a Husqvarna 345 chainsaw, chances are you’ve encountered some problems along the way. Don’t worry – I had similar issues when I bought my Husqvarna 345 chainsaw. Luckily, I was able to troubleshoot them and I’ll share what I learned here with you.

So let’s get straight into the most common Husqvarna 345 problems most homeowners encounter.

Starting Problems

The most common issue that you may run into is a problem starting the motor. If you find that your Husqvarna 345 chainsaw is having trouble starting up, there are several things you should do first before taking it in for repairs.

Check that the L screw is adjusted properly. If air filters are blocked or you have a worn choke pivot, your chainsaw won’t start correctly.

You should also make sure that the fuel filter and line aren’t blocked, otherwise, fuel can’t get to the engine.

Lastly, check that there’s nothing blocking the impulse channel. If the impulse channel is blocked, your Husqvarna 345 chainsaw may not start.

Fuel Leaks

Husqvarna 345 owners often face carburetor leaking fuel-related problems due to a variety of issues.

This might be caused by something as simple as a loose or faulty fuel pipe, but in some cases, more serious problems such as a hole in the diaphragm, worn needle valve, or even in its assembly are to blame.

It is also possible that the needle valve is set too high, leading to leakage of air or fuel from the metering system.

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Whatever the case may be, these problems should always be attended to before use for safety reasons.


Another common problem with the Husqvarna 345 chainsaw is excessive vibrations during operation. This can be caused by a variety of things such as worn-out spark plugs or air filters.

If you find that your saw is vibrating excessively during use, check these components first before doing any further troubleshooting. Also, make sure that all of the screws and bolts are tightened properly.

Loose screws or bolts can cause vibrations which can lead to fatigue and even injury if left unchecked for too long.

Flooding When Not Running

If your Husqvarna 345 is flooding when it’s not running, the problem likely lies in the carburetor needle valve.

This valve determines how much fuel flows from the tank to the engine during operation, and if it becomes worn, is set too high, or even begins sticking, it can cause excess fuel to fill the cylinders and prevent proper engine operation.

Luckily, these problems are easily corrected by adjusting or replacing faulty parts. Finding the right components – such as a needle valve assembly – and getting them properly fitted could help you get back up and running soon.

Uneven Idling

Uneven idling could signal any number of issues, such as a blocked fuel filter, a blocked fuel line, a leaking air intake hose (rubber), loose carburetor mounting bolts, or worn throttle pivot and valve screws.

Other potential causes of intermittent idling could be a sticking needle valve assembly, a hole in the diaphragm, or leakage in the metering system (air or fuel).

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It’s also important to check for signs that could indicate motor wear. Taking the time to identify and address these issues can save you from much larger problems down the road.

Low Power

If you’re having trouble with your Husqvarna 345’s low power output, it could be due to any one of a number of issues.

A blocked fuel tank vent, fuel filter, or air filter are common culprits, you should check these first.

It is also possible that something is wrong with the spark plug or ignition coil, as either of these can affect the motor’s performance.

The needle valve assembly is prone to sticking and holes in the diaphragm or a faulty metering system assembly can cause further problems too.

Lastly, you might need to adjust the H screw and check for any loose diaphragm rivets.

Taking the time to diagnose and fix these common problems should help you get your Husqvarna 345 chainsaw running in top condition again.

Final Thoughts

The Husqvarna 345 can be a great tool for homeowners who need an efficient chainsaw for their outdoor projects. Like any chainsaw, it’s important to understand what types of problems may arise while using it so they can be dealt with quickly and easily as soon as they appear.

Performing some basic troubleshooting steps on your Husqvarna 345 like checking for loose connections or replacing worn-out parts will help you get your chainsaw running smoothly in no time.

I hope this guide has been helpful in helping you to troubleshoot common Husqvarna 345 chainsaw problems that often rear their head. With some basic knowledge and attention, your chainsaw should be running smoothly again in no time.

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