jonsered 2252/husqvarna 545 that bogs? electronic carburator problems??

Allar · November 02, 2019, 06:07:36 PM

Almost forgot but they did release a new fuel line along side with the new carbs to fix the idle issues.
Oh and they replaced the carb with AT-7B on my saw.

Andyshine77 · November 02, 2019, 09:13:29 PM

Correct the updated fuel line comes with the new carb. Ment to say 7B. The AT-1 was on the early 550, along with the AT-1A, AT-7 And now The AT-12. The current carb on the 550 is the AT-12 the 545 should in fact have the AT-7B my mistake.

ry597 · November 03, 2019, 01:52:56 PM

i will take a further look in what carb was installed. the first thing he checked when i brought it in was the fuel line. he said if it didn't ran better after 6 tanks that i have to return it to him. do they sell a kit to do pressure tests? a guy on youtube called donboy73 used a small pump that could do pressure and vaccum test. i have failed to find one at my local parts/hardware store. but i do believe that you are right! it really sounds like its lean. i have another project going on, im working on a jred 630 that i swapped a 272 carburator on. it has a lean condition i believe it has bad crank seals. my 2252 acts the same way as my 630.

ladylake · November 03, 2019, 02:45:52 PM

If that 630 runs spray some WD40 at the seals when its running, if it slows down, bad seals. Also spray around the carb to cylinder boot on both ends and cylinder base. If it slows down that here the leak is. The 630 has a bd intake boot design that could leak. Steve

Andyshine77 · November 03, 2019, 03:11:53 PM

Look for a Mityvac with pressure and vacume functionality online. You will also need a way to seal off the exhaust port and intake. You can use inner tube rubber and use the muffler as a block off plate. The intake is harder with these saws because of the Strato ports, they require plugs.

Try the WD40 first. If the saw does have an air leak I suspect it's the transfer cover cap seals. They had a run of defective seals.

Your dealer advising you to run the saw for six tanks is absolutely absurd. This would cause severe engine damage to any saw with an air leak, or tuning issue, your saw has at least one of those. The AT system should adjust as fast as it did in the video I posted, within a few cuts, 6 tanks of fuel is hours and hours of cutting. As I thought, you're dealer is totally incompetent. He did not diagnose the saw, just through parts at it and hoped you wouldn't come back.

I'm truly sorry you have to put up with this nonsense.😔 Again I suggest you contact Husqvarna, with the build date on the saw it should be replaced no questions asked, those saws are defective, the failure rate was very high at that time, Husqvarna was in a mess.

Andre'

ry597 · November 03, 2019, 03:59:53 PM

i will be contacting jonsered tomorow. didn't know they were that bad... i checked out your youtube channel. your saw is running way better than mine even with the bad carburator. your saw has like a "lag", mine bogs really bad. for an example. if im making a cut and it let it return to idle. as soon as i go to throttle up again, it bogs real bad. it can be only idling for a second and it will do that. i really appreciate your help! at this point its not even worth it to mess with it. ive been loyal to jonsered for almost all my life. i doubt that they would leave my with a diffective saw. when buying it the dealership said "we never had any issues with the autotune since they came out". pretty sure they were only trying to make a sale. i wish it could show you a video of how bad its acting up.. and thanks ladylake! im not to woried. its going to be a milling saw! i did base gasket delete and added permatex to base of the cylinder and a very slight amount on intake block and other parts. it might be the permatex that is failling or that i have a bad seal. im going to take it all appart and i will run a 272 cylinder and piston! im going to do the full conversion. it can only be 2 things so im not very woried. i have to turn the low screw 2 turns out and it will not even run right. its got to be an airleak. a further investigation will beging after i finish messing around with my jonsered 2252.

Andyshine77 · November 03, 2019, 05:27:54 PM

I would personally contact Husqvarna, Jonsered is pretty much a dead brand now, no more pro Jonsered saws haven't been made in about two years now, a new saw would have to be old stock 2252, or a 545. You could also try and find a component dealer that help you out.

Best of luck to you.

ry597 · November 03, 2019, 05:43:33 PM

so you think that husqvarna could help me even if its a jonsered? i know jonsered was owned by husky but i didn't knew they had customer support for others brands. then i guess i will be contacting husqvarna! do you think that they will send me another saw? it would be awsome if i could pay extra and get a 550 instead! not sure it works that way lol

Andyshine77 · November 03, 2019, 06:44:39 PM

Will they send you a new saw? well we can hope, but that's not usually how it works. Most of the time they will refer you to a Servicing Center/Dealer, which are far and fee between in much oh North America, and sadly unless you're in a logging area most of them are incompetent and just want to sell you something.

I would contact both Jonsered and or Husqvarna, couldn't hurt.

Other than that I don't know what to say. I would normally suggest talking with the dealer you bought the saw from, a good dealer can have some pull and get the ball moving on replacement, if they can't fix the saw. But that dealer doesn't sound on the up and up. Telling you to run the saw for six tanks, that's just unbelievable!

Best of luck to you hope I helped.

Greenerpastures · November 04, 2019, 04:36:33 PM

Quote from: ry597 on November 01, 2019, 11:27:31 AM
thanks alot! the guy who works at the shop knows his stuff pretty well. he updated the software to the latest version and put the newest version of the carburator that was available. it was an old build date. one of the first models to come out. what would you recommend me doing? from now on i will work on it myself. i have very good knowledge when it comes to saws. no need to send it out to the dealer everytime. right now the bigest log that ive got is like a foot in diameter. i cut cookies off of it for a while. the carburator didn't seem to ajust itself. in a 12 inch log it had the chance to ran wot for a few seconds each cut. the dealer said the same thing, that its normal for them not starting on its own.

If that is an older early model saw, some of them had problem
after problem and were more than difficult to get right, only
the likes of saw builders who were also determined stood any
chance with these saws, and without a good dealer you stand none.
Get your money back if at all possible, even if it means buying a non
Auto tune Husqvarna or whatever the dealer you got it off is selling.
You will be a lot happier.

Greenerpastures · November 04, 2019, 04:43:46 PM

Quote from: Andyshine77 on November 03, 2019, 06:44:39 PM
Will they send you a new saw? well we can hope, but that's not usually how it works. Most of the time they will refer you to a Servicing Center/Dealer, which are far and fee between in much oh North America, and sadly unless you're in a logging area most of them are incompetent and just want to sell you something.

I would contact both Jonsered and or Husqvarna, couldn't hurt.

Other than that I don't know what to say. I would normally suggest talking with the dealer you bought the saw from, a good dealer can have some pull and get the ball moving on replacement, if they can't fix the saw. But that dealer doesn't sound on the up and up. Telling you to run the saw for six tanks, that's just unbelievable!

Best of luck to you hope I helped.

Good advise there.
If it won't run after five minutes buried in a log,
then it isn't going to change over the next five or so tanks of fuel,
the Autotune will figure out what to do in a minute, if not, there are
problems that need addressed.

ry597 · November 22, 2019, 05:09:58 PM

in then end im trading it for a echo620pw. all the husqvarna linup comes with autotune. With my current experience i absolutely hate the autotune system. they are high reving saw that needs to be constantly under heavy load. you can't really feather the throttle or ajust it rich like you would do with an ajustable carburator. sometimes i need to do ripping cuts or cut smaller stuff which i have a hard time doing with my 2252. i could see a professional faller using the newer autotune or somebody that has really big trees on their property. if your a weekend warior like me its really not the right kind of setup for the application. my dealer was nice enough to take the saw back and offer me a fairly decent price.

Pine Ridge · November 23, 2019, 10:55:28 AM

I understand your frustration with your autotune saw, they either run great or not good at all. The one i own and the 4 that we have at work all run great, the 4 at work are used hard almost every week and perform flawlessly, 3 562s and a 550 xp. I have seen a 550xp that had about the same symptoms as yours, it was taken back to the dealer and worked on, the saw came back running like it should and the owner hasn't had anymore problems with it, not sure what all the dealer did to it but it came back fixed. Good luck with your new saw.

ry597 · November 23, 2019, 12:16:59 PM

thanks alot! from what i have read. it can be a number of different things. they updated the carburator and software with the most up to date one. on my model, they were known to have a few air leaks. i could mess with it but i was offered an echo 620. really like the echo linup! they are solid saws for the price. walbro carburator and magnesium cases. anxious to try it out!