T540 trouble waking up

[Stuart Picken]

Hey folks. 

So I've a t540, only about 6 months old but definitely worked hard. 

Only thing (besides the everyday stuff) ive done with it is replace the fuel tank/handle a few months back when I cracked it.

I've noticed in the last 2 weeks it's got Much harder to start working. It won't idle until I've slowly run it up to running flat out. Other wise it just stalls out idling, or if I put it into a cut the revs will drop right down and stall. Basically it needs an extra long warm up.

I know this is just saws aging, but what should I be looking at? Something must be different because its a big change in the last couple weeks! Still work with it, it's just annoying.

Cheers folks.

 

Edited September 2, 2019 by Stuart Picken

[allseasons]

Mine did that had it reset and its fine now you can reset it yourself but have forgotten the process to do it its something about choke on choke off run it up with chain break off someone might be able to help on here though

[peatff]

Sounds like it's not fuelling properly. If it's still under warranty at 6 months take it in and get it looked at. If it's down to you get the carb off and clean the fuel filter out and check the metering arm and diaphragm. Give it all a blow out and some carb cleaner through it.

[Stuart Picken]

I did wonder if was a carb thing.

I remembered another symptom. While it's warming up it stalls easily if you turn it on its side/upside down.

[adw]

Poor idling on auto tune is very often low compression, due to a partial seizure, or excessive ring wear.

[spudulike]

Sounds like another one with the impulse line come off, that always causes a bad idle! If that is OK then it is as ADW says - poor compression - the AT doesn't accommodate engine wear as well as a tech with a screwdriver!

Oh - also check the muffler spark arrestor...unlikely but possible.

Edited September 2, 2019 by spudulike