Is there a special wrench?

[67L36Driver]

For the compression release.

13mm combination wrench will ‘tease’ it in, but impossible to tighten properly.

1/2” deep well socket won’t get past the tin collar.

 

[Armbru84]

There is a Stihl made tool for it. I use that or a scrench as it think enough to work normally.

 

[jacob j.]

Will a 13mm deep well socket get you to where you want to be? It should be 13mm.

 

[Homemade]

I had to use a 13mm in 1/4 in drive. The 3/8 drive sockets had too thick of wall to clear the cooling fins decently.

 

[MustangMike]

In 3/8 drive deep sockets, my 6 point socket will not work (too thick), but my 12 point works fine. I believe both 13 mm or 1/2" will work.

 

[67L36Driver]

Hah! Found one.

1/4” drive, 13mm, six point deep well in a cheap set from my son’s junk.

Needs a touch of back boring but works OK.

Thanks fellas. [emoji106]

 

[CR888]

I'm pretty sure the 1/2" end of a 1/2"/-/34" scrench works, or a 10mm plug scrench that has a 14mm hex.

 

[Chainsaw Jim]

The little husqvarna scrench is the perfect tool for decomp valves.

 

[Wagnerwerks]

I probably have 15 sets of deep sockets between work and home and only a few set at bored deep. There are a few sets with next to no center hole that barely fit my socket rack before I modified them.

 

[psuiewalsh]

Is this the ported sockets thread?

 

[Leafy]

The craftsman socket set my dad bought in the 80s has the right od on the 13mm 3/8 drive deep socket.

 

[sawmikaze]