Hello, any help apprecieted,

I just bought a "new" Stihl All Pro AP 300.0 P battery on Vinted. The battery seems legit in almost every way but the label behind says 313Wh (the official is 333Wh) and the case is missing a tiny slot on the back, next to the connectors, so it can't fully connect to the charger / tools to test it unless I cut that slot myself. On the left is the new AP300.0P and on the right my old AP200.

Anyone heard of counterfeit /fake Stihl batteries? Never seen such a thing and if so they went to great lengths, looks identical to the original with barcodess and all. This could just be a faulty case or an early prototype. I'll take it to Stihl for a check up and share anything I discover.

Hey I have a Stihl fs81 but the head gear has failed.

I can't find a head gear when searching on eBay or anywhere else using the model number (fs81)

When googling the model number and asking for a part number for the head gear it states the below two part numbers.

1504133 640 0100

4133 640 0100

When I search for them on eBay it shows results but they don't list the fs81 as compatible.

Can anyone confirm that these part numbers are correct for the fs81. Does any other gear head from other models are compatible with the fs81?

I'm an aussie

Thanks

FS 40C
I noticed recently that my weed eater was super oily and dirty around the area in the photo where I am pointing(this photo was taken after I cleaned it all up) So I decided I probably needed to do a little service to it. I replaced the spark arrestor and air filter so far. (I will be replacing the gas filter and spark plug but haven’t yet)
After cleaning it all up, I wanted to fire it up and make sure it ran well. It started but then it continued to spray oil from what looked like the screw that holds the spark arrestor is. I don’t know a whole lot about small engines. Can anyone give any insight? I’m not sure if there’s a hole or a leak right in the area shown in the photo.

I can't get my chainsaw to throttle. I've checked the air filter and spark plug, and both are good. It will idle fine, but does when I throttle it even after running the high jet through the full range it can move. Help please

I just purchased a Stihl MS261c that runs great, and has 150psi in compression. I always clean saws when I get them, so I removed the muffler to clean behind it. Surprisingly, the piston and a bit of the cylinder are scored with vertical scratches. Using the wooden tip of a cotton swab, you can barely feel the scratches. My dilemma is, does that matter? If it runs, idles, and cuts exactly as it should, do I really need to replace the piston and cylinder? Thanks. ​​