Stihl 201 climbing saw petrol leak

[carsmarco252]

Good morning. I could do with some help please. I have a top handled 201 and it has developed a petrol leak when it's on my harness. In storage or when being used horizontally it's fine but when it's been hung it starts to leak out. It seems to run out from near the carb area/from under air filter cover and runs down towards the handle. I've had the back off and can't see anything obvious. Could it be the tank breather leaking or does anyone else have any other ideas? I'm not a brilliant mechanic so keep things in simple terms please?. Many thanks. 

[lurkalot]

Worth checking that breather as a first step, had one the other day which had a crack in the top of it.  Kept piddling out fuel, and I never spotted it when I was servicing the saw. 

[Stubby]

9 hours ago, lurkalot said:

Worth checking that breather as a first step, had one the other day which had a crack in the top of it.  Kept piddling out fuel, and I never spotted it when I was servicing the saw. 

I had this years ago on a Husqvarna 394 ( obviously not a climbing saw ) but the tank breather was the culprit .  New one fitted and all was well .

[spudulike]

Those breathers tend not to leak. Possibly the fuel line is leaking where it pushes in to the tank, the tank has a split along the join or the fuel line has a split in it.