How to choose correct Stihl AV buffers

[harrygrey382]

Trying to order AV buffers for my 064. The IPL lists 3 choice of rubbers per location. EG for the rear lower buffer, it could be any of these:

1125 790 9906 Annular buffer1125/06
1125 790 9904 Annular buffer1125/04
1125 790 9910 Annular buffer1125/10

Which do I want? It’s an early model with metal recoil cover, old style fuel/oil caps and had the slim line (useless) air filter

 

[HarleyT]

 

[harrygrey382]

Yeah that’s what my list looks like - so do I want 15,18 or 21? They’re all listed for one buffer

 

[HarleyT]

I would just go with normal.

 

[harrygrey382]

I would just go with normal.

Which one is that?

 

[harrygrey382]

Sorry, just read your post better - I see it’s 18. So the differences are obviously just rubber hardness not fitment?

 

[HarleyT]

Sorry, just read your post better - I see it’s 18. So the differences are obviously just rubber hardness not fitment?

As far as I know. If replacing one, I just chose the normal ones. If I had to do them all, I would ask the customer.

 

[harrygrey382]

Tha

As far as I know. If replacing one, I just chose the normal ones. If I had to do them all, I would ask the customer.

Thanks. Softer gives better Av right?

 

[HarleyT]

I would think so. You might wait for someone that has switched them, I just fixed saws.
I didn't use them much.

 

[cscltd]

Softer will not be as good on long bars or pushing with dull chain as mount will be stretched and rip faster. Sometimes they will all sub to one version as they don’t make all versions for all markets or after a certain time frame after end of production of model

 

[Bob Hedgecutter]

View attachment 920610

Mrs Harley has a similar scale......
No Viagra = Soft
1 Viagra = Medium
...........

 

[Vintage Engine Repairs]

I have changed them, they have either a number or letter formed on them (can’t remember now), check what your other AV buffers’ number / letter is and then buy one of the same hardness / softness. That’s all it is they refer to - soft, medium and hard.

 

[HarleyT]

Mrs Harley has a similar scale......
No Viagra = Soft
1 Viagra = Medium
...........

She no longer shows any interest in "buffers".

 

[Jasonrkba]

Lol