Jonsered 2055 turbo continually flooding

[mrdiesel]

Just wondering if these saws are known for flooding? We have one of these in my local RFS. The saw doesn't leak fuel at all but when it's choked we pull until it fires then push the choke in and pull until it starts.

Commonly what's happening is the saw will not start but fuel drips out if the muffler. If we do get the saw to start it idles fine and revs wot fine. Power during the cut is good.

I replaced the spark plug and it was badly carboned up so it's running way to rich but I've never seen a saw leak fuel from a muffler after 3 or 4 pulls

 

[Reddog]

Sounds like the needle tip or seat is damaged, allowing fuel to flow pretty freely.

 

[mrdiesel]

Sweet, I'll have a look into it. Hopefully it's just the needle tip

 

[Magnus]

3-4 pulls is not enough to fill muffler. Close the needles, run it dry, reset needles one turn out and try.
Main inlet needle leak is my bet also. Test it with pressureto it.

 

[mrdiesel]

Thanks Magnus, I've not heard of a main inlet needle. Is this the same as the high needle?

 

[Magnus]

No it is under metering membrane and decide what amount of fuel is let to the adjustment needlesm H and L.