Fuel mix on the air filter??

[shanks]

Hi all,

 

Losing power in the cut today whilst limbing a few small conifers (Husky 240).

 

Thought maybe old fuel mix, 5 weeks old. Ran my 365 on the mix just fine to finish job. Investigated the 240 when I got home and found the air filter, which is a fabric layer job, covered in fuel mix and sawdust.

 

Its drying off now but any ideas how this happened?? and of course how to prevent it.

 

There is an exploded diagram here, sould it be of use...

 

http://www.husqvarna.com/ddoc/HUSO/HUSO2011_AAaa/HUSO2011_AAaa__1154212-26.pdf

[Gollum]

It's quite common to have fuel mix showing on the air filter.

one cause is prolonged ticking over.

[shanks]

I see. It was quite damp though.

 

So I guess a damp filter and saw dust not allowing enough air through to maintain power whilst cutting would cause the loss of power??

 

Thanks for the input.

[JAMIE1]

Fuel coming out the back of the carb whilst the saw is running and into the airfilter is a sign of worn piston skirts.

[Pedroski]

I've had drenched air filters caused knackered diaphragm in the carb. Bought carb service kit and problem solved.

[shanks]

Saw's two months old, and only used lightly. I know its only a garden saw but its perfect for the jobs I put it to use for.

 

Surely it cant need seriously looking at, at such an early stage?

[3dogs]

as the air filter sits directcly on top of the carb its going to get fuel deposit, the fuel and saw dust will congeal causing air starvation and loss of power.

[shanks]

As I thought then. I'll pick up some new filters as back up.

 

Thanks for all the above input.