562 won't idle - need help!

[CapitaineHaddoc]

Hello everyone,

Today i was working with my new ported 562. The saw has something like 12 tanks through it. After a first tank this morning (the saw worked perfectly), it was pretty hard to restart the saw, and once started, she wont idle. If i don't touch the throttle, the saw dies after less than one second. And at WOT, i can hear that there's something wrong, she run "irregular".

And after she dies, i can restart her with the choke (2 pulls each time), and she will start at fast idle, but dies again immediatly.

I checked everything i can check, fule lines looks fine, air filter is clean, no scoring on the piston. But i can't use the saw like this, and if i can, i'll fix it myself. Any idea?

 

[tlandrum]

sounds like it may have an air leak. check all fasteners and make sure nothing came loose(cylinder bolts,case bolts,intake boot). then do a pressure and vac test. if all these tests pass then move on to the carb and fuel system. it may have some trash in the fuel system. possible that the primer bulb is leaking and getting air too.

 

[CapitaineHaddoc]

Well, i'll take a look, but i don't have the tools to make a pressure and vac test. I'll ask my dealer if he can do something.

 

[stihlaficionado]

sounds like it may have an air leak. check all fasteners and make sure nothing came loose(cylinder bolts,case bolts,intake boot). then do a pressure and vac test. if all these tests pass then move on to the carb and fuel system. it may have some trash in the fuel system. possible that the primer bulb is leaking and getting air too.

So the AT won't compensate for the air leak? Or only partially so, w/i certain parameters?

 

[CapitaineHaddoc]

So the AT won't compensate for the air leak? Or only partially so, w/i certain parameters?

I had an air leak on my first 562, and the saw wasn't acting like this one. The AT compensate for the leak, but now it's completely different.

 

[tlandrum]

depends on how bad the leak is. also I will say that any time I have a saw that ran great for the first tank and goes south immediately after refueling the fuel is the first thing I check. the way the saw is acting ,describes exactly how a saw with a blown seal acts. runs at wot but dies as soon as you let off of it.

 

[CapitaineHaddoc]

I'm back on the saw, she cooled a little, an had idling well for ten seconds. I'll put all the saw apart and look for something weird.

 

[CapitaineHaddoc]

Just removed the carb, and a lot of gas was pushed through the fuel line.

 

[sunfish]

Leaky decomp valve is something to check. Spray a little soap on it while running.

 

[CapitaineHaddoc]

Nope, the decomp valve is fine. I suppose i'll have to find a dealer who will agree to work on a ported saw.

 

[old-cat]

Why do you want to use a 60cc saw when you have a Dozer Dan 346XP???!!!!!!!!!!!

 

[CapitaineHaddoc]

Why do you want to use a 60cc saw when you have a Dozer Dan 346XP???!!!!!!!!!!!

It's because i have this 346 that i replaced my 562 by a ported 562.

 

[old-cat]

It's because i have this 346 that i replaced my 562 by a ported 562.

That was a stupid question! I'm just envious!

 

[sunfish]

That was a stupid question! I'm just envious!

Was funny though and made some sense...

 

[CapitaineHaddoc]

That was a stupid question! I'm just envious!

Don't be, this 562 is pretty strong, but she begin to piss me off. I really hate that kind of issues, especially on a new saw.

 

[old-cat]

AT will NEVER find a home with me!!!!!!!!!!!!!!!!!

 

[CapitaineHaddoc]

No, I think the AT is a great feature, it's probably something else

 

[tlandrum]

everyone seems to forget that even though the carb is electronically controlled ,its still just a chainsaw with all the same parts you would find on any other chainsaw.

 

[sunfish]

Yeah, AT isn't the problem. Probably a carb issue.

 

[CapitaineHaddoc]

I checked all the bolts, they're tight. Now i'll check the carb himself. And if the problem isn't sold, I suppose i'll put the saw on the trading post