Husqvarna 550 Air filter - variants?

[andrew]

Was looking to get a new air filter for my 550

When I look at the diagram,  [ see https://www.lsengineers.co.uk/husqvarna-550xp-xpg-chainsaw-spare-parts/carburetor-air-filter-assembly-for-husqvarna-550xp-xpg-chainsaw.html ] 

there are four different options - does anyone know the difference??

Guessing the current one is 522 67 54 05? Is yellow, has 522 67 54  in tiny print in the corner, and a 5 in the middle under the clip.

 

Thanks!

 

[Toad]

It is down to the filtration level, 80 micron, 44 micron or felt.

 

There is more of a description on here.

 

https://www.ransomspares.co.uk/diagram/husqvarna/chainsaws/826001/550 xp__xpg/

[Toad]

[adw]

Latest orange frame filter is down to 25 micron, this has replaced the yellow frame filter, the black frame filter is classed as a winter filter, I have seen issues with the orange filter, it is so fine that even when it looks clean it can part part blocked, this causes auto tune to lean off and start to affect starting and running.

[MattyF]

Latest orange frame filter is down to 25 micron, this has replaced the yellow frame filter, the black frame filter is classed as a winter filter, I have seen issues with the orange filter, it is so fine that even when it looks clean it can part part blocked, this causes auto tune to lean off and start to affect starting and running.

Off topic but how long will we be waiting for a new husky 90cc saw Andrew ?

[adw]

Still being tested i am told, possibly end of next year, they are keeping it very quite.

[spudulike]

Is that quite quiet

All nylon mesh air filters need a good dousing with fluid and blasting with an air compressor every week or so. Water is no good and as ADW says, they often look clean but are often completely blocked causing the saw to run like it is on partial choke or leaning on AT saws.

Best one was a saw in from France with this as the running issue!