Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Husqvarna => Topic started by: Phuffman on October 28, 2013, 12:37:41 am

Title: Husqvarna 346xp won't high rev
Post by: Phuffman on October 28, 2013, 12:37:41 am
2 year old 346xp
Starts fine.
Fuel filter fine.
Won't rev up to high speed.
Title: Re: Husqvarna 346xp won't high rev
Post by: 660magnum on October 28, 2013, 12:53:05 am
Probably too lean on top end or it could be too rich. I would have to be there and listen to know the difference. If too rich it is probably smoking?

Maybe if you elaborated with what led up to this problem?
Title: Re: Husqvarna 346xp won't high rev
Post by: Bluegill on October 28, 2013, 09:21:25 am
Yes, need more info. Rare problem for sure.

Check the spark screen.
Title: Re: Husqvarna 346xp won't high rev
Post by: Phuffman on October 28, 2013, 10:50:23 am
Already checked the spark screen.  It was fine with a little carbon buildup, but I took care of that.

Not sure why this is occurring.  I've only cut ~ 20 cord with this saw and it was brand new when I purchased it.  I've used the same fuel mixture throughout the life of this saw and all of the other saws I've owned with no other previous problems.

When I start the saw, it doesn't seem to want to go to high rev "status".  Thus, when I try to cut it takes for ever because I can't get the rpms up.  It doesn't smoke, just won't rev up.  It also doesn't die on idle, but will sit and idle fine.
Title: Re: Husqvarna 346xp won't high rev
Post by: 660magnum on October 28, 2013, 11:29:45 am
Apparently the high speed mixture needle is set too lean? You will need to open it up some.

If it is against the plastic limiter tab on the needle, you will need to cut the tabs off.
Title: Re: Husqvarna 346xp won't high rev
Post by: adam32 on October 28, 2013, 02:05:46 pm
Take the bar and chain off then see if it'll run better...
Title: Re: Husqvarna 346xp won't high rev
Post by: mountainlake on October 28, 2013, 05:12:34 pm
 Carb settings don't change unless you changed them, did you switch to crapola gas which need to be set richer to run. Have you been using craploa gas, if so your carb is gunked up and needs cleaning.   Also if you've been using crapola gas check the fuel line.    Steve
Title: Re: Husqvarna 346xp won't high rev
Post by: Bluegill on October 29, 2013, 02:06:10 pm
Quote
Thus, when I try to cut it takes for ever because I can't get the rpms up.

Man, I wouldn't try and cut with the saw running like that. It's too good a saw to burn up. Take it to a good shop and have it check out, if you're not up to fixin it. Tell ya what, pull the muffler and take a look at the piston and tell us what condition it's in. Check the fuel line real good also.

Title: Re: Husqvarna 346xp won't high rev
Post by: Cut4fun . on October 29, 2013, 02:11:30 pm
If your anywhere near me OP in Ohio.  I'll look at your saw for you if you want. Just a quick look over to see whats wrong wont take long at all.

Title: Re: Husqvarna 346xp won't high rev
Post by: SawTroll on October 29, 2013, 02:15:49 pm
Quote
Thus, when I try to cut it takes for ever because I can't get the rpms up.

Man, I wouldn't try and cut with the saw running like that. It's too good a saw to burn up. Take it to a good shop and have it check out, if you're not up to fixin it. Tell ya what, pull the muffler and take a look at the piston and tell us what condition it's in. Check the fuel line real good also.


  Yes!
Title: Re: Husqvarna 346xp won't high rev
Post by: Bluegill on October 29, 2013, 02:16:26 pm
Also, does the chain move around the bar freely by hand?

Take Cut4fun up on his offer, if you are close...
Title: Re: Husqvarna 346xp won't high rev
Post by: Adirondackstihl on October 30, 2013, 01:01:22 pm
If the "H" was lean enough to keep it from revving, I would have to say the saw would just fall on its face and die.
Even pig rich, I think the saw would still rev.......not 14k+, but it would still rev.
I'm leaning towards a carb issue. Is the choke / throttle interlock working correctly? Sounds like its running on full choke?
Title: Re: Husqvarna 346xp won't high rev
Post by: Bluegill on November 01, 2013, 01:45:00 pm
Did we ever figure out what was wrong with this one?
Title: Re: Husqvarna 346xp won't high rev
Post by: Cut4fun on November 02, 2013, 12:01:50 pm
Did we ever figure out what was wrong with this one?

I was wondering too.